I only played this to get the badge, so I didn't see the other modes. Survival mode is pretty simple, though. Once I found the right weapon, it was easy.
Sorry to say, I mainly played this because I just wanted the badges, since I don't often go for fighting games. And I didn't really get the story or (inside?) jokes. Still, like the previous commenter said, it's obvious that a lot of work went into this game.
Fun little game. The save game/continue didn't work for me, but I just managed to play the whole thing through in one go, and got the badge. Woohoohoo!
Nice idea (based on the Towers of Hanoi) and implementation. But the badge is too easy - I earned it on my first play of the game. Or maybe it's just my kind of game.
2 suggestions - there should be a "scratch" area off the board where you can store tiles; and some way of marking board positions without moving a tile there. But those would make it easier than doing it in your head. I got 18 levels fairly easily, but now I'm tempted to go to paper and pencil to work on the next levels....