Okay, let's start thinking of games that could potentially defeat the undefeated ones!
RE4 - CT, SSBM, RBY
CT - SSBM, RE4, RBY, Super Metroid (just because it always seems to overperform against JRPGs)
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Currently Playing - Mega Man 2
Hopefully Next Up - Final Fantasy VII, Metal Gear Solid, Brood War