Super Mario Sunshine. I know where EVERYTHING is in that game.

I hate resident evil 5 but i used to be pro at that game i finished it with the default pistol on proffesional difficulty.And i made a stun rod run too. 0_o now i suck...

I'm fucking awesome at The binding of Isaac. Nearly finished collecting every item and i rarely die.

I'm good at a game called SCP-Containment Breach!
(Ummmm, Left 4 Dead 2 I guess.)

Star Wars Battlefront 2 ^^

Resident Evil 4
TF2
Super Metroid

Psychonauts. Got every single achievement on it, including the one for getting absolutely everything in the game. Rank 101 aw yeah~

GAMES THAT I IS BOSS AT:
SCP Containment Breach
All Resident Evil/Dead Space games
Slender..?
POKEMANZ. :3
Man vs. Wild game
Spider Man 2 and Spider Man Rises.
The Dark Knight forever Returns Rises Infinity Begins and Robin Rises 2...Forever
Gun Go goes North
Bubby 3
Bun Bun goes up
Dingus Guy the Bat
Alfred rises
Bane's Rises

ALL Valve Games
Slender Series
SCP Containment Breach
Amnesia:The Dark Descent
SCP-087-B
Dead Space

Dead Space 1 & 2 FTW, also modern Fallouts and of course Pokemon till Bout 4 years ago lol, then Bioshock yup.