I loved the humor and the dialogue! I felt that was really top notch. Everything seems incredibly polished. (And of course the music is AWESOME)
I feel like your only lacking area is intuitiveness.
The art is pretty awesome as well. I'm sure this has been said before but the initial reaction to the game is pretty confusing. At first I skipped the little speech bubble and said had absolutely no idea what to do. Something like that *needs* to remain on screen. There was also little feedback from the tools themselves. I thought I was supposed to click where the green light is with my saw, but I just kept clicking around until it randomly worked. Having it light up when you get near the right area would really help.
Also what was frustrating is the fact that the cursor is relatively large, and has sparks coming out, and that makes navigating on super thin lines really annoying. Perhaps at least making the starting stage a bit more lenient would help a lot more players get into the game faster.
I also felt that the time limit did more harm than good, at least in the first level. After 3 attempts at restarting the game and trying I still couldn't beat the level in time.
I'll give it another try but other than that, incredibly amazing work!