I realize this comment wont last long because the hardcores will vote it down and call me a flamer. But. I do have to agreew ith oscar01 a bit here, bubble tanks is getting a bit overdone. I loved bubble tanks, and arenas, but tower defense just apparantly is not their strong point. I found the game very boring, although it did have some good ideas.
I have all the briliants except for level 14, The Secret Passage, I cant seem to kill the final ninja with anything, 5 maxxed out meteors hits 2000 of his 2500 damage and even the critical hit of a maxxed out den only hits 250. Anyone with a solution please let me know. :) Excellent game btw, 5/5.