The first game I ever played was Super Mario Bros. on the Nintendo. I started playing when I was 3 and played it for hours with my sister/mom. I could always beat my sister, but my mom was a little better. I still love to play it.
Umm...d*mn...this is a good question...I was probably too young to remember(i was maybe 4 or 5 years old...all's i know is i was into Mario when i was in kindergarten)...but it may have been one of the classic Mario games on NES or SNES. If so...it was probably either Super Mario Bros. on NES or Super Mario All-Stars on SNES.
My first game was Super Mario World on the SNES. The console and game still works, and I still play it weekly. I was only 3 years old when I played my first video game. ;D
My first game was a mix between the original Mario Bros. on the NES and Crash Bandicoot 1 for the PS1 (1996 was the year when these consoles always were mix-matching =P)