Great, unique and fun.
Played right through until lvl 27; great game, graphics and play factor. (Music nicely done too)
Some of the puzzles made you think and some of the tools (a gattling gun? ahah) were fun to use.
Few minor issues with mouse tracking, and sometimes when moving the cannon or the gattling gun the operator would be upside down, not a big deal just some odd glitches.
To get past level 16, take out everything expect the nitro boxes and one pillar next to the greenhouse, then bounce a shot off the wall to the right so it bounces back and hits the pillar, enough shots and you can clear a shot to the nitro boxes, destroying the whole thing and sparing the greenhouse (doing it this way also prevents your cannon ball from bouncing off the nitro and hitting the greenhouse)