I think I witnessed my brother playing SMB on a SNES. Ah well, I think Battle Hunter was the first game I played. At least, I remember playing it often.
First online game I got was Team Fortress 2 (In 2009, before October, I still had an old computer that could barely run anything 3D without blowing up)
Speaking of old games, I just sold my PS3 and bought a NES.