I've just done the ones I can remember!
First side-scroller - Super Mario Bros
First 3D platformer - Fade to Black
First adventure game - Secret of Monkey Island
First first-person shooter - Wolfenstein 3D
First RPG - Fallout
First Survival Horror - Resident Evil
First game with violence - Wolfenstein 3D
First game ever ended - Super Mario Bros.
First simulation and strategy game - Syndicate
First racing game - Screamer
First beat-em-up - Double Dragon
First puzzle game - Tetris
First sports game - Daley Thompson's Decathlon
Currently reading... The Servants of Twilight by Dean Koontz
"Time is an illusion. Lunchtime doubly so."