15 Best Things to Unlock After Finishing These Video Games

Pokemon Red and Blue – Cerulean Cave and MewTwo

Upon defeating the Elite Four and making your rival tap out like a sissy, the mysterious cave that was blocked off in Cerulean City – only accessible by using Swim – now becomes available. Inside are several high-level Pokemon which provide lots of experience (some like Rhydon can also only be found here). Of course, the main attraction is MewTwo at the end, the elusive 150^th Pokemon who’s level 70. Hope you saved that Master Ball.