Everyone loves Pac-Man, I think. I got one of those Plug-N-Play games, and it has Ms. Pac-Man, Galaga, Pole Position, etc. I love Pac-Man the best., though. It's pretty fun, eh? It's classic, but still cool, and challenging.
The 2D ones pwn the 3D ones and then some. There's just something about them rather than the 3D ones that gets you addicted from the moment you play it. There are loads of TV Pacman games that you plug in. The new ones have Pacman trying to swim. SWIM? Come on - this yellow blob was only created for one thing - to eat all those little dots and blue ghosts XD