I like the overall style of the game, although the thought letters should prance about a little less IMHO but the cross puzzle on the top floor (where you have to shift the parts up and down) just broke it for me. It goes from leisurely puzzling to OMG I HATE THINKING in a nanosecond.
Too much thinking, not enough game. For my brain configuration anyway. Graphic execution and music are on par (music could be a little higher quality) But my brain didn't really enjoy this one. Although I hunt badges, I'm skipping on this daily badge.
Studying the upgrade tree makes this one easy. Untill you get to the later bosses, than it's about reaction skills. Talk about a steep curve :P
Still, I like it ^^
 "Jacksmith"){kind=icon}
 "The Adventures of Red"){kind=icon}
 "4 Differences"){kind=icon}
 "Mechanical Commando 2"){kind=icon}
 "Factory Balls"){kind=icon}
 "Boss Slayer"){kind=icon}