http://meatfighter.com/j4k2009/invaders/

Post your high score if you beat the game. 

A really great remake of Gauntlet in 4 Ko, with a lot of stuff to do and a great deal of enemies ! I suppose the similarity with Space Invaders lies in the futuristic design of the game, as the player is driving a spaceship with a pulse gun instead of a barbarian ( or elf/wizard/walkyrie) with throwing axes ( arrows/fireballs/lance ) ...

Not actually sure, because it's drawn in transparent white and the first two characters are on top of a health powerup. I think it's 454535. (Edit: oh, wait, it's changed the window title: 474535). Obviously it's possible to get an infinite score if you really care about it.

Solid concept, although not really enough depth for 8 levels. If you have the spare bytes, some indication in the UI of the number of keys you're currently carrying would be nice. Also I didn't realise until about level 5 that you can kill the spawn points: that makes it a lot easier.