Well, here's the list of my favorites. It might surprise some people, considering how so few PSASBR titles actually got considered

1) 3D Platformer: B, Banjo-Kazooie
2) 2D Platformer: A, Cave Story
3) Multiplayer game: A, Borderlands 2
4) Action game: C, Dead Rising 2: Off the record
5) Point n click-ish: B, The Cave

6) Open World game: C, Saints' Row the Third
7) Turn based RPG: B, Persona 3 Portable
8) Other RPGs: C, TES: Skyrim
9)  Fighting Game: B, Ultimate Marvel vs Capcom 3
10) First Person Shooter: A, Timesplitters Future Perfect

11) Rhythm game: C, Elite Beat Agents
12) Plot-heavy game: A. I said Phoenix Wright AA: TT, although now I believe that I like more the first one
13) Puzzle game: C, Portal 2
14) Miscelaneous game: A, Journey
15) Racing game: A, Diddy Kong Racing

16) Highscore game: B, Jetpack Joyride
17) Social game: B, Candy Crush Saga
18) Bulding game: A, LittleBigPlanet 2
19) Indie Game: B, Cave Story
20) Real time strategy: C, Age of Mythology

Guessed right 9, which is quite more than I expected. Could have been 10.
got 5 instead :I

And that's about it for this time. If I ever do something like this again, I'll put less questions. 20 was way too much for the average commenter