YOU can enter the cerulean cave if you give the ruby and sappire gem to cielo sorry about the wrong spelling
Go to the end of the cave.
Go through the cave.
if can go to cerulean cave you can
First you have to beat all of the Kanto gyms. After that you go to the Cerulean Cave. At the end of the cave you find Mewtwo.
you have to get 16 badges and go to the end of the cerulean cave and mewtwo will be waiting there
Curlean Cave, go very deep inside the cave ,then go back to the entrance, and Mewtwo will be standing there,make sure you have all 16 bagdes though
Go to Ceruleun Cave in Ceruleun city after getting 16 gym badges and go through the cave to find a lv 70 mewtwo to catch.
You catch Mewtwo in the Cerulean Cave. The cave is very long and puzzling and will require much searching to find him. Mewtwo is located in the very end of the maze.
Beat the game first, then go to the Kanto Region, and then there is a cave in the city where a guy was blocking it earlier, but now since you beat the game you can go into the cave and find Mewtwo.
mewtwo i believe is in the Cerulean cave, just go down the ladder and i think he is right there
hi/to get mewtwo you go to rout 6 and find blue dots,from thear follow themto a cave in that cave thears a platfom with a book on it ,click and read the book then mewtwo apears
After you beat the Elite Four, Mewtwo is in the Cerulean Cave. To get to this cave, go across the Nugget Bridge, then surf on that body of water until you get to the cave entrance that was previously blocked off.