The first room contains a path that you can use Rock Climb to scale, or there's also a pool of water with a waterfall in it that you can climb up as well.
If you're going after Moltres, you'll want to ascend the waterfall and traverse the watery path. You'll still need to use Rock Climb a few times along the way, though. There's also a seemingly empty cave down that path, but don't worry about it for now; just keep heading back until you reach a waterfall with an entrance to the back room.
In the back room there, you'll find Moltres deep down in a pit that you need to use Rock Climb to get down to. That's all that's in the room, though. Climb on down, save your game, and get ready to try catch yourself a Moltres!
Safeguard will protect Moltres from becoming Asleep or Paralyzed or the like, so that may affect your strategy if you are trying to catch it. Still weaken it like always and be careful not to accidentally knock it out. AncientPower may raise all of its stats by quite a bit, making your fight quite a bit more difficult, but chances are it won't, so don't worry too much. Besides, you should be strong enough to take it on anyway.
The best type of Poke Ball to use against Moltres here is a Dusk Ball. Lob a bunch of them at Moltres and it will be about as effective as anything else you could throw at it. It can be quite tricky to catch, basically as difficult as Lugia or Ho-oh were, but thankfully nowhere near as powerful for you to take on — unless you started with Chikorita and don't really have an answer for Fire- or Flying-type attacks.
Whether you catch Moltres or not (if you KO it, just beat the Elite Four again for it to reappear here), there's nothing else for you to see this far back, so return to the entrance of Mt. Silver instead.
Back at the entrance, if you climb up the rocks using Rock Climb, you'll find an exit leading outside to the side of Mt. Silver.
On the side of Mt. Silver, you'll need to climb up the steps until you get to the topmost ledge. Then head north until you're able to climb back down the stairs again, right by an entrance back into Mt. Silver. There's nothing too great inside that entrance, so keep climbing down the steps until you get to the bottom-most ledge, then finally climb up the stairs just to the south so you are at the middle entrance back in.
Now you'll be back inside of the mountain, except on a much higher up ledge. Follow it until you reach the stairs leading up and climb them, leading you to another corridor with another room in the back.
This back room is pretty large and requires a lot of running around, so Max Repels are recommended. You start out in the center of what seems like a very large pit. You will need to climb up the steps and usually run around in circles at each layer of the ledge until you climb up to another layer.
It's rather straightforward until you get up to the top, so don't worry, it's not like it's a huge puzzle or anything. It just requires a lot of walking. At the top ledge, you can head southwest if you have Rock Smash to pick up an item, but it's nothing terribly important.
Exit out to the upper part of Mt. Silver's exterior and then head on over to the eastern side. There are two entrances leading back in. Take the top-most one; the bottom one leads you to a dead end.
Go back inside of Mt. Silver briefly just to exit again, out on another corner of the upper part of Mt. Silver's exterior. Wrap around until you find an entrance leading back into the cave along with some rocks you can climb just to its west.
Climb up the rocks to pick up a Pure Incense, but then go back into the cave and exit shortly afterward farther off to the west.
More rocks for you to climb! Climb up the first set and then you'll see three sets of rocks for you to climb right in front of you. Take the middle one to reach an entrance leading back inside.
Now there's just a path to your west leading you over to one massive cliff for you to scale with Rock Climb. Do so, then exit the mountain for a final time.
You're finally at the very peak of Mt. Silver, just moments away from fighting the strongest Trainer in the game, Red. Make absolutely sure that your Pokemon are fully healed, that you have plenty of PP for your attacks, that you have Hyper Potions, Full Restores, Revives, Max Revives, and various X items to boost your stats. You will want to have this items for sure, because Red is very difficult if you go in unprepared!
Save your game before proceeding forward, and then you'll find the lone Trainer up at the mountain's peak. He'll say nothing to when you talk to him, but the battle will open up quite dramatically with Lance's battle theme playing as well.
Red is the strongest Trainer (outside of any Battle Frontier or Battle Tower areas) in any of the main series Pokemon games. All of his Pokemon are at level 80 or higher, with his strongest, his Pikachu, being at a whopping level 88! That is quite a substantial jump from Blue's team of upper 50s (with a lone level 60) — 25+ levels difference without anyone else you've had to fight!
If you don't have a team of Pokemon at least at level 60, chances are you're not going to be able to defeat Red, even if you are very skilled. Having a diverse team of Pokemon at level 75+ is recommended and will still be quite a bit of a challenge, but it is certainly possible to take him on below that if you are good at using items and have solid Pokemon on your team.
One important point: the weather is set to an endless hail, meaning that all of your non-Ice-type Pokemon are going to take damage every turn from hail. Remember that! It is very important and can sometimes mean the difference between defeat and victory if you miscalculate and forget to factor that in. However, that hail will hit all of Red's Pokemon as well, which you can use to your advantage — with the exception of his Lapras, of course.
Pikachu is Red's strongest Pokemon and the one that he starts off with in the battle. It is holding the Light Ball, meaning its Attack and Sp. Atk stats are both doubled, meaning its attacks are going to do more damage than any other of Red's Pokemon, assuming you're not counting weaknesses or resistances. Not only that, but it is pretty darn fast and will almost certainly outspeed you unless you are around its level.
As far as its moves go, it has Thunderbolt, Iron Tail, Quick Attack, and the devastating Volt Tackle. Quick Attack is a refreshing attack for Pikachu to use and it will sometimes use it when you are healing. It doesn't do a ton of damage, thankfully. Volt Tackle is the strongest move in Pikachu's arsenal and it will hit you very hard, but it will also deal a lot of the damage in recoil back to Pikachu.
Neither Ho-oh nor Lugia are a good choice to use against Pikachu thanks to their weakness to Electric-type attacks. A strong Ground-type Pokemon will stop the brunt of Pikachu's attacks, so use Pokemon like Donphan, Sandslash, or Dugtrio against it — just remember that Quick Attack and Iron Tail still hurt, particularly Iron Tail.
You can also use Protect to stall out against Pikachu and let it take damage from hail, though Red has plenty of Full Restores that he is ready to use, so you will need to know when to strike.
Try to apply X Defends against Pikachu right away, as most of its attacks are Physical-based. On the first turn any Pokemon is fighting it, you should use one, unless you think it is more likely that it will use Thunderbolt and will KO you with it. Even if you don't have a Ground-type in your party, fellow Electric-types or even a Grass-type will render Pikachu's strongest attacks quite a bit weaker, allowing you a chance to set up on Pikachu if you can withstand Iron Tail and Quick Attack, which is why you should use an X Defend or two, monitoring Pikachu's damage and healing with a Hyper Potion when you get weak (or Full Restore if you get paralyzed with Thunderbolt by some chance).
After you've got those X Defends on (1 or 2 will be good; you don't want to risk getting hit with a critical hit), use an X Attack or X Special depending on what you use to attack with and then start unloading your strongest attacks, healing when necessary. Remember that Red will heal, too, so if you can, watch how much damage you're doing and then wait until you're able to do just enough to KO Pikachu without letting its HP drop below 25% or 30%, which is around when Red will use a Full Restore.
Red will send out his next five Pokemon in a different order depending on who you use on your team, but it will usually be what he thinks is best to handle your current Pokemon. I'm just going to go down the list, though, and warn you of his Lapras, which is also very difficult to fight.
Even though Lapras is the weakest Pokemon on Red's team level-wise, it is packing Blizzard in its arsenal. Since Lapras is an Ice-type, it gets STAB and will do 1.5x as much damage with Blizzard. Oh yeah, and don't forget that Blizzard will not miss while it is hailing out.
Unless you want to get rid of the weather somehow, which I'm guessing you probably won't be able to do (if you can, cool, that will help a bit), that Blizzard can really hurt.
Though they are relatively hard to come by, a strong Steel-type like Steelix or Skarmory would be awesome to use against Lapras. You still have to watch out for Brine if you're using Steelix, though. Actually, you need to watch out for Brine in general; it will do 2x as much damage if your Pokemon has less than half of its HP remaining, so that may take you by surprise!
Try to keep your Pokemon healed most of the time so it is not below that amount. Get whatever Pokemon you think can handle Lapras (hint: Electric-types are probably your best bet and most feasible option) pumped up with X Sp. Defs right away to lessen the impact of Blizzard. Do that on the first turn Lapras comes out, really! If it looks like you're taking more than 60% of your HP after getting hit with a Blizzard, after using an X Sp. Def and taking hail damage, you will not be able to take out Lapras until you can survive 5 turns of Blizzard.
Remember, Blizzard has just 5 PP, so keep track of how many times Lapras has used it. Once it has used it 5 times, you don't have to worry about it any more and can deal with its relatively sub-par attacks after that (just watch out for Brine). Again, X Sp. Defs really do help against it, and you may want to apply an X Attack or X Special before delivering the final blow.
Lapras also has Psychic and Body Slam to hit you with, but neither move should be of grave consequence to you. Psychic is a check for any Fighting-type Pokemon you might think would work, though, so that is why I advised against Fighting-types — or for that matter, Rock-types, but that should be at least fairly obvious already.
Oh, also, Lapras has a ton of HP and has a bit higher Sp. Def than it does Defense, so Physical-based attacks are your best bet against it. Don't feel shy about hitting it with a solid Thunderbolt or Discharge, though, because it will still hurt a lot.
Snorlax can be a huge threat to deal with. It is a Normal-type, meaning it is only really weak to Fighting-type attacks. A Fighting-type Pokemon is without a doubt your best hope against Snorlax, but if you don't have one, you may still be able to take it out if you can handle it with care.
First of all, the main attack you need to be cautious of is Giga Impact. It can pull it out at any moment and it will HURT if it hits you with it. Start out by immediately using an X Defend against Snorlax to hopefully keep Giga Impact from being a one-hit knock out if it uses it. It might still be, but you never know. Thankfully, it has just 5 uses of Giga Impact thanks to its low PP, and you also have a turn afterwards to get back on your feet.
If Giga Impact knocks you out, send out a Pokemon, perhaps an HM Pokemon or, if you're like me, a Gyarados with Intimidate (I used the Red Gyarados as my Waterfall Pokemon as well as a few other moves), then use a Revive or Max Revive (try save those unless you know you need them) and let Snorlax knock out that Pokemon so you can send back in your other one — or switch right to your newly-revived Pokemon and just vigorously apply Hyper Potions afterwards.
It's a tricky gamble, but you need to be able to survive that attack. Steel-types will be at an advantage against Snorlax, but don't get too cozy thinking that Ghost-types or Rock-types are a good choice against Snorlax — Snorlax also has Crunch and Blizzard in its arsenal of attacks, as well as Shadow Ball, so either of those two types will just get hit in the face with a knock out blow.
Blizzard is a pain, too, because although it doesn't hurt as much as Lapras' Blizzard did, it will still hurt a lot. Crunch will also do a ton of damage. Shadow Ball is usually a welcome attack to use, but Crunch and Shadow Ball can lower your Defense and Sp. Def respectively if you get unlucky, so be mindful of that!
If Blizzard is ripping you apart, use an X Sp. Def to keep it more tame, but remember that X Defends should be your top priority. Using X Attacks or X Specials is also a really good idea, because Snorlax, like Lapras, has a colossal amount of HP to deal with. Physical attacks are really the way to go, though, because it has an incredible amount of Sp. Def, but if you have to use Special-based attacks, the X Specials will help augment that difference.
If you have any Pokemon with Intimidate on your team, like the aforementioned Gyarados, one strategy that works well against Snorlax is to burn through your Revives just to activate Intimidate. Let your Intimidator get knocked out, send out some other Pokemon that you are ok with getting knocked out, Revive the Intimidator, switch to it after Snorlax knocks it out, then revive that other Pokemon and repeat the cycle. Before long, Snorlax's Attack stat will be significantly lower and you will be able to withstand its attacks without the help of X Defends. It's Sp. Atk is sub-par, so just apply one X Sp. Def and you'll be able to do great against Snorlax.
Here come Red's starter Pokemon. His trio of fully evolved Kanto starters is pretty rough and diverse to say the least, but thankfully none of them are particularly excellent in anything in particular and most have well balanced stats.
Venusaur is probably the more annoying of the three starters, because it can put you to sleep with Sleep Powder and it can use Giga Drain to heal off the residual damage it may take from hail. Sleep Powder isn't all that bad, particularly early on while you are using X Sp. Defs against it (no need to bother with X Defends against Venusaur). In fact, if you do get hit with Sleep Powder, just keep applying X Sp. Defs, X Attacks / X Specials (one of the two), and maybe even an X Speed or two until you get weak enough that you need to heal. When you get that weak, use a Full Restore and that will cure your sleep as well, so it's not really that bad.
It's the Giga Drain that is the most annoying thing just because that hail damage really helps, particularly if you are using a lower level Pokemon to fight it. Healing is not a welcome thing when it's your opponent that is doing it.
Other than that, it has Sludge Bomb to attack with normally, which may poison you and will hit for a pretty good amount of damage thanks to STAB. It doesn't really hit anything all that hard that you were going to use to attack Venusaur with, unless you were using Butterfree or something.
It does have Frenzy Plant, which is essentially a Grass-type version of Hyper Beam. It will do a lot of damage, but then Venusaur has to recharge for a turn after using it. You can use that to your advantage, but you want to be very careful that you don't get hit with that and get knocked out, because that would be very bad!
One thing to always be aware of is that Venusaur has the Overgrow ability, meaning that its Giga Drain and Frenzy Plant attacks will do 1.5x as much damage (in addition to the 1.5x they get from STAB) if Venusaur is below one-third its HP. That will cause Frenzy Plant to do a ton of damage and it may seriously mess up your calculations, so just be a lot more defensive when Venusaur gets lower in HP.
Being able to outspeed Venusaur is probably a good thing, too, so try use an X Speed or two so you are able to do so. It is not that fast anyway, but its high level will still probably let it outspeed you without using an X Speed. That way you don't have to have Sleep Powder messing you up when you're trying to attack it.
Charizard doesn't have a lot of frills behind it. It is nearly all offense, so you have to brace yourself for that!
It has two strong Fire-type attacks to hit you with: Flare Blitz and Blast Burn. Flare Blitz is essentially a Fire-type Volt Tackle — strong Physical-based Fire-type attack with high recoil damage — where Blast Burn is just a Fire-type Hyper Beam.
It also has Air Slash and Dragon Pulse ready to hit you with. Thankfully that's it, though, so any Electric- or particularly Rock-type Pokemon will do excellent against Charizard without fear of getting hit with a Super Effective hit. A strong Rock-type attack like Rock Slide or Stone Edge will put Charizard in its place rather quickly.
However, you still have to understand that Charizard is pretty darn fast and it also has quite high Sp. Atk. You need to enter the fight against it by using an X Sp. Def or two as soon as you are able to. You should be able to survive a Flare Blitz if you are at full HP, but it might not hurt to apply an X Defend early on as well, just in case.
You may not be able to outspeed it, but keep healing when necessary and apply some X Attacks to pump up your Rock-type attacks (or X Specials if you're using something like AncientPower or Power Gem). If you don't have those available, use the appropriate X item to boost the power of your Electric-type attacks, because that will do great against Charizard as well.
Like Venusaur, Charizard has a power-boosting ability, Blaze, that boosts Charizard's Fire-type attacks by 1.5x if it is below one-third of its HP. Be very careful, because Blast Burn and Flare Blitz have the potential of hurting a lot with that! Charizard also hits a little bit harder than Venusaur in general, so just be cautious of that. With two X Sp. Defs, you can probably survive it, barring a critical hit.
Lastly (well, depending on the order Red sent out his Pokemon in) is his Blastoise. Blastoise itself is probably the least of the threats you need to worry about, simply because it is more defense-oriented. However, despite its defensive stats, it has purely offensive moves, making your job fairly straightforward.
Start out the fight against it right away by using an X Sp. Def if you don't still have one or two left over from one of Red's previous Pokemon. All of Blastoise's attacks are Special-based, but they're all pretty strong and diverse, so be careful.
Blastoise has Focus Blast, Blizzard, Flash Cannon, and then the Hyper Beam-like Hydro Cannon in its arsenal of moves to choose from. Focus Blast is inaccurate, but it's a fairly strong Fighting-type attack if it hits you. Hope that it misses! Blizzard is 100% accurate during the hail, so watch out for that, as you had to with Lapras and Snorlax (Blastoise's Blizzard hits harder than Snorlax's, but much weaker than Lapras'). Flash Cannon counters, what, Rock- and Ice-types? You know, types that you weren't going to use against Blastoise anyway.
Thankfully Blastoise's only Water-type attack is Hydro Cannon. It will hit you significantly harder than any of its other attacks, but it will still hurt a lot less than either Venusaur's Frenzy Plant of Charizard's Blast Burn thanks to its lower Sp. Atk stat. If you handled either of those two, Blastoise will be a piece of cake. Then you get a turn to heal up or get back on your feet. Plus, Blastoise has just 5 shots of Hydro Cannon before it is completely empty of any sort of Water-type attacks, making it quite tame in comparison.
Do be wary, though, because Blastoise does have a lot of Defense an Sp. Def. However, it will get pummeled by the hail, so there's no rush to take it out — you can set up with X Sp. Defs and X Attacks/Specials as much as you'd like and heal whenever you need to. Just stall Blastoise out and you'll be able to handle it fairly well.
Just watch out for Torrent, its ability that is similar to Venusaur and Charizard's. It only powers up Hydro Cannon, though, but it will still make it hurt pretty bad.
There are endless ways to successfully defeat Red, at any level, and so much of it depends on what Pokemon you are using on your team and what moves those Pokemon have to attack with.
Here are some more general tips that you should keep in mind when fighting Red, regardless of what is on your team and what Pokemon he has out. You know, just sort of general stuff:
- It is entirely possible to beat him with lower level Pokemon (in their 60s, or maybe even lower), but it requires a lot of strategy and luck to do so. I still recommend 75+, but know that anything is possible.
- You will want at least 25 Revives, 30 Hyper Potions, 10 Full Restores, 20 X Defends, 20 X Sp. Defends, 15 X Attacks, 15 X Sp. Atks, and 10 X Speeds for your fight against Red.
- Never, never underestimate the power of the X items. You get to use them before Red can even attack, effectively reducing the amount of damage he will do by 33% right away, and then a full 50% by the next use of it.
- It is really, really important that you keep track of how much damage Red is hitting you for and to heal or use X Defends/Sp. Defs appropriately. If he is doing more than 50% after your first X Defend/Sp. Def, you need to carefully work in another X Defend/Sp. Def; if he is doing more than 60% after hail hits, you are going to get KO'd no matter what, so don't bother and try it on another Pokemon.
- You are better off to rely on your Pokemon with higher Defense and Sp. Def stats than "glass cannons" or Pokemon with low Defense or Sp. Def, as they receive more of a boost when you use X Defend/Sp. Def.
- None of Red's Pokemon have any Ground-type attacks. This means any Electric-type Pokemon never has to worry about getting hit with a Super Effective attack. Pokemon like Ampharos, Raikou, Raichu, or Electabuzz/Electivire can use that to their advantage. Lanturn is also a good choice as long as you keep it away from Venusaur and Pikachu.
- Heal often! You will be using more items than you will attacks in your fight against Red if your Pokemon are below level 80. It is very important that you are constantly healing your Pokemon and are able to figure out when the best time to heal is.
- Revive your Pokemon often! Even if you are using HM Pokemon that aren't at a high level, it's important to revive them frequently, too, if you have a turn or two to do so. You can send them in just in case your primary Pokemon gets knocked out and can then use a Revive to heal your fallen Pokemon. But once you run out of those HM Pokemon or your spare Pokemon, you will not have any room to recover from a bad hit or two.
- Max Revives are pretty awesome. You might as well use any that you have in this fight. Just use them wisely and whenever appropriate. If you burn through them all, it's ok, because there's not going to be a harder fight out there than the one against Red and you are much better off beating him this time around.
- If you lose against Red, don't save your game afterwards, otherwise you will have wasted all of your items that you used in the fight. That is why you save your game before fighting him.
Good luck, Trainer!
After defeating Red, he will vanish from Mt. Silver and you will be presented with the credits for another time.
If you've beaten him, congratulations! You have successfully defeated the strongest Trainer in any Pokemon game! Way to go!
Once he's been defeated, you will be able to unlock a few other little treats, such as being able to pick up a Kanto starter of your choice from Professor Oak in Pallet Town and being able to fight against a much more powerful Elite Four.
Red will not show up again, though, until after you have defeated the Elite Four. He doesn't get any more powerful, however, but that is the only way he will reappear after each fight you have with him.