Cheetahmen is the only one worth your time.
As for the 51 other games, they just suck. Nothing else.
It has games that don't make sense, such as Timewarp Tickers. Even though I kinda enjoyed this game, It's very difficult. Your a pair of 2 disembodied fingers waking on a checkerboard killing worms, stick figures & a bunch of other weird crud. The weirdest thing about this game is when you kill the enemies, they say "Time?". Time for what? TIME TO FREAKING DESTROY THE CARTRIDGE?!?!
Then there's games where you die the first 3 seconds, like Star-Evil. They just consistently place a block at the beginning of the stage.
Speaking of which, this game has ALOT of space-shooters. But I can't go over all of them.
All the other games are just to weird to describe so just get this for Cheetahmen.