It's a model 2 unit, and from what I see in the photo, it looks like it doesn't come with a battery cover, which stinks, so I had to buy a battery cover separately, but the guy I bought it from says his offices are closed until the 8th of the month..... Anyway, I managed to also score 4 games to play on it. They are:
S.T.U.N. Runner
Toki
Ninja Gaiden
and KLAX