I'm really starting to hate block/crate/box puzzles. Yeah! I get to push a block onto a switch again! Its not like I haven't done it 100000000000 times before, but this time its soo original because there's 10 boxes and 10 switches! That must mean its approximately 100 times the fun! *%*(&$#% boxes....
I also dislike, as someone else stated, having to watch a cutscene or go through dialogue a second (or third, fourth or 5th) time after dying. You should ALWAYS be able to skip past a dialogue/cutscene/FMV if you want to.
Oh, I just remembered: Cheap-ass computer opponents! They cheat! I swear! Just go play Mario Kart on Gamecube at 150cc or mirror mode in Grand Prix. You can have as big a lead in first as you'd like, but then you're gonna get hit by 5 spiny blue shells, 4 red shells, a giant koopa shell, and then when ALL the computer opponents pass you they'll all drop banana peels and fake item boxes. When I'm in last place I get bananna peels and green shells. What the hell? There are 100's of other examples of cheap computers, how I hate thee!
-Blue