all you have to do is beat the Pokemon leuge and all the gyms.
Become a pokemon champion, get the national dex, deliver the ruby and sapphire to Celio. Once all of this is done you can enter cerulean cave.
If I remember correctly you have to beat the elite 4 before you can get into the cave in the cave are Pokemon over Level 60 you will also find a Mewtwo there.
as I remember it you had to do three things, I don't remember the first thing but the second thing you do is, beating the Elite Four and the third thing is as the man says "has done something important" which is getting both the ruby and the sapphire for Bill's friend on One Island in the Sevii Island Doctor_Shadows
First you beat the elite four after you beat the elite four you already got the ruby for celio so you go to the you go to the dotted cave and use cut on the door then go down the holes in it youll have to figure it out yourself how the pattern goes cuz i forget. then when you get to the bottom there will be a sapphire you get it then a team rocket nerd will steal it from u. go to the rocket warehouse on the 5th island. go fight every body and fight the nerd youll get the sapphire take it to celio and the dude in front of cerulean cave will be gone go in to get mewtwo! :)
Only Pokemon League Champions have access to Cerulean Cave. As such, you first have to beat the Pokemon League in order to get in.
To get there, go up Nugget Bridge in Cerulean City, head west, and surf southwest until you find the cave entrance. The man guarding the entrance will be gone.
Inside the cave, you will face a number of rare and powerful Pokemon, most notably, Mewtwo.
To get in the Cerulin cave which Mew 2 is in lv 70 u need A. 3 or more lv 50+ B.A Pokemon lv 80+C.50 ultra balls D.HM?Surf E.Must have beaten Pokemon luge
Hope I helped! FЯED RULES
you have to get all the gym badges in kanto
you have to catch 60 pokemon for the national dex and then you can get in there
in heartgold by gettin all16 gym bages
no mewtwo is in cerulean cave and articuno is in seafoam island
uh...... if you didn't go into the dark cave in johto and the cave east to cerulean and north of the electric plant. P.S don't mistake the cave in cerulean city. not the cerulean cave!!!!!!!!!!!!!
You can find Mewtwo in the back of Cerulean Cave.
The Cerulean Cave is in Cerulean City. You have to surf from a place around Cerulean Cape down to the Cerulean Cave. The Cerulean Cape is north of Cerulean City across the bridge.Go to the north end of the nugget bridge then left down the grass and follow the mountain to it. Btw you'll need flash and you can find Mewtwo in it.
You Can Go Into This Cave Once You Have Beaten The Pokemon League. Cerulean Cave Is Where Chanseys And Mewto At LVL 70.
there is no cerulean cave in ruby
no mewtwo is in cerulean cave and articuno is in seafoam island
There not in cerulean cave.
uh...... if you didn't go into the dark cave in johto and the cave east to cerulean and north of the electric plant. P.S don't mistake the cave in cerulean city. not the cerulean cave!!!!!!!!!!!!!
yes you need all 16 badges to get into cerulean cave.
Cerulean Cave, nor Cerulean City, was not in Pokemon Emerald. In RBY, it opens up after beating the Elite 4.
The cerulean cave is behind that man that says u need all badges to get through. It is in cerulean city
you have to beat the elite four, and get the national dex. then go to cerulean city, go past the nugget bridge, and surf on the water. there is a cave,and its cerulean cave
You cannot catch Mew in the Cerulean Cave because it can't be found there.
You can get all the Pokemon in the cerulean cave where you find celebi below the cerulean cave.
You can find Mewtwo in the back of Cerulean Cave.
The Cerulean Cave is located in the west part of Cerulean City. If you head north, you will notice a water way to the left of the bridge. Surf on that waterway and you will eventually reach Cerulean Cave.