Hi! I have a problem. I am playing to the Leafgreen version. I have already beaten the Elite four (including my rival) 5 times, but if I go to a pokemon center and see the PC at the "Hall of Fame", it is writing that "The HALL OF FAME data is corrupted, and I cant also go into the cave in Cerulean city, the guy always say hat is dangerous and I have to be stronger, should beat the Elite four, but I have already done it! Pls help! I'd like to catch mewtwo, and discover some other places, too. Thank You!