The first game I can remember ever playing was Mighty Morping Power Rangers, for Super Nintendo.

Hopefully this doesn't get me age targeted more often here, but RC Pro-AM on the NES.

The Addams Family for Phantom System, a non-oficial latin NES clone, when I was 3 years old.

I've actually been trying to figure this out for a while now, and my current best guess is the 1989 game "MadMaze" from the early online service Prodigy. Looks like ... it's not on Backloggd! But there are a couple YouTube longplays.

Spyro the Dragon baybeee

Spyro the Dragon. I guess I'm younger than most here.

Tetris on Gameboy

Croc: Legend of the Gobbos

I have a hard time remembering exactly, but I think my first might've been Sonic Heroes when I played it at a McDonalds

Donkey Kong Country (SNES)

Toy Story 3 for the Xbox 360 is the first game I remember playing. My dad was a big Xbox guy so he got me the game to play when i was still like, a baby lol

Crash Bandicoot: Warped

Spongebob Squarepants: Battle for Bikini Bottom (except it's the GBA version, not the one people actually fondly remember)

Dune 2 for the PC, though being a kid that did not know English I was just messing around in it

Tetris

New Super Mario Bros. DS

My actual very first memory from when I was 3 years old, is me being crawled up like an armadillo on the couch, and my brother coming to me and asking if I want to play a racing game.
It was "Carmageddon 2: Carpocalypse now" Not exactly a game that kids should play, but destroying other cars as a car was pretty dope.

Pac-Man

super mario 64 babey das me