Found a bug.
Using beta version of Chrome.
One can go into the option screen within the game to buy extra money or lives and not actually buy anything with creds (just hit close), but still get creditted as though one bought something.
Badges don't work. No idea how to get the bonus mission even after completion of all regular missions. I liked the game though, so I didn't rate it lower for the poor badge implementation.
I've beaten the game and achieved all the badges except the easy one, even though I have the checkmark in the box on the first as if I completed it. Odd.
decent for a TD game, but the concept is getting old nonetheless.
I accidentally got the card after only progressing to 6 new maps by going back to play beaten levels to get xp.
crash is confirmed on Opera for me as well.
kongregate mods (or whoever) might want to do some playtesting before selecting a game for a challenge (unless they get paid off by the dev, which wouldn't surprise me in the least).