Yeah, pieman831 is correct. Any flash game with a save feature saves a .sol file onto your harddrive. CCleaner and other programs like that automatically delete .sol files unless you tell it not to in the options.
Manhuntershadow, that's just bad luck. I've played this game where I've gotten 3 free rolls within a single role and beaten the computer (on hard) by almost 8000 points.
Take challenge 15 for example. 17 times on the trot, the computer played an attack card and killed me in one move. I had no health or invulnerability cards to play, so it was just restart, die, restart, die, restart, die; that has nothing to do with abilitiy (or lack thereof), it's just blind luck. Very annoying.
Entertaining game, but it's too long with too little variety. It should either be shorter or have more enemy types; as it is, boredom sets in around the midway point. Still though, 4/5
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