I did every Sequence Break known (at the time, I'm sure there are more now) in Metroid Prime.
I can beat Metroid Zero Mission in under 45 minutes (if I get lucky with the Black Pirates).
I completed Devil May Cry 3 to 100% including the Special Edition (All difficulties completed to at least a B per level but I had a few SS [which I'm happy with, you might not call it 100% but I think grades in games are stupid {I'm also not counting HoH mode cause it's impossible to get enough orbs without spending too much time and thus loosing a high rank anyway, cause unlike DMC4 the orb score is just a general number, not what's scattered about in the level under a rock or in a dumpster}] with all the power-ups and weapons/items/orbs maxed).
That's all I can think of at the moment, but I'm sure I got more...