Pitfall

Before you download this game, be aware that it has ABSOLUTELY NOTHING to do with the original Atari 2600/arcade versions of Pitfall. It is a very different game altogether. That said, it is a fairly decent (albeit very simple) game where you navigate your character as it falls down a virtually endless pit (hence the name 'Pitfall'). You keep going and going, trying to avoid crashing into walls and happy faces.

The further you go without dying the more points you get.

If you don't mind really dated graphics, this can be a pretty cool arcade-style game.