You can turn Centipede into Qbert. I guest in MAME will need a dipswitch in order to change a game. For now I don't think this is dumped yet. You have to forward the video to see what that guy did.
I like the Pac-Man game. Better than the Asteroids.
Centipede is ok using a stick. They should've put a mini trackball which would be much better. The screen could've been better. I don't like it fat.
I like the Qbert much better than the Centipede. Even Frogger is better than the Centipede.
I didn't buy any of these because of the price. Should've been $5.99 each. More than that is too pricey. Those will stock up at the store. Just wait until those go very cheap before buying one. Just maybe you get one under $6 or buy them all under $6 dollars each.
You can get the 12 games in one for $19.95 or what ever. Look for the Pac-Man shape controller.