Here ya go
http://www.freewebarcade.com/game/chronotron/

A little glitchy at times but still fun. Currently on level 21.
Cheers.

Great game Makes a change to see something so original.

already stuck in level 4....

found it..!

[Edited on 15/5/08 by t.j.]

Got to 29 but then it crashed and when I reloaded I was back at 19 Not sure I have the energy to play all those again!

level 87 then I fell asleep