The hand-to-hand fight; I could never figure out a consistent way to get past it. I think I read the right way to do it had something to do with crouching at mid-range, but even using that I couldn't beat him every time.
God yes. That thing has killed so many 1CC runs of mine...fuck that dude
I actually made a list of some of my favorite games, and I'm gonna point out something I don't like about them:
Chrono Trigger: Uh....I'll get back to you
Resident Evil 4: that stupid little puzzle where you have to slide the pieces to fit into a logo. I always forget the order and I get frustrated screwing around with it for five minutes, then I have to restart so I can look up a guide and start with a clean slate.
Half-Life 2: the turret defense sequences in Nova Proskept are too long and not that challenging.
DKC2: The second half of Animal Antics...fuck you, Rare
Viewtiful Joe: Uh...
Bayonetta: No restart checkpoint like Metal Gear Rising. And that motorcycle level goes on FOREVER. I've surprisingly warmed up to the flying section, tho
Ninja Gaiden Black: The underwater chapter is pretty damn tedious and those big fish things scare the SHIT out of me.
Star Fox 64: Locking one of the best stages in the game(Zonas) behind one of the most boring(Aquas).
Sonic 3 and Knuckles: Launch Base Zone
Rayman Origins: How attacking in the air stops your momentum(Legends is fixing this!)
Super Street Fighter 4: 1-frame links...fuckin' why, Capcom?
Super Smash Bros Melee: Some really annoying unlock requirements
Prince of Persia: The Sands of Time: Boring, clunky combat
Time Crisis 2: It's really easy once you know what you're doing. The red guys are pretty much the only threat.
Metal Slug 3: That last level, while epic in scope, goes on FOREVER and starts to drain your patience. Especially the last boss fight that seemingly built to absorb quarters, he has so much health.
Symphony of the Night: Criminally easy to break
Team Fortress 2: Dustbowl...stop voting for it, you fuckheads
Super Mario Galaxy 2: The bird levels you control with a motion controller can eat a GIANT dick
Halo 2: SMG starts on Coagulation...fuck you, Bungie
F-Zero GX: Story Mode Mission 7
Yoshi's Island: Kinda boring when you're not collecting everything.
God of War 2: The pegasus flying stuff is very one-dimensional and a bit boring.