Cmon, no old school?
1. Super Mario World - SNES
2. Ms. Pac-Man (can't stress enough that I hate Pac-Man... He was slower than his girlfriend and the ghost paths seemed elementary compared to the other)
3. Galaga (only machine I ever put all 9's on)
4. Super Mario RPG - Legend of the Seven Stars
5. Gran Turismo (whole series)
Honorable mention:
Yoshi's Island
MK2 and MK9
Final Fight (whole series)
DMC (not the newest one.... Little punk bitch character they decided to go with over Dante smh)
Pokemon (Gameboy)
Yu-Gi-Oh (Gameboy)