Starting from the menu, the design was good, especially the mouse hover effect. The character design was simple yet astounding (choosing distinctive colours over a whitish background). The graphics were good to where the foreground was well distinguished from the background and the lighting added the cherry to the top. Considering the mechanics of the game they were well written. Overall the game aptly and innovatively adhered to the theme. I also realised the levels were designed by giving them a proper thought which is worth appreciating.
Few improvements which can be done are: in level 4 the switch button overlaps the game scene and could've been corrected by shifting the main camera. The game became slightly difficult due to the ladder/vent mechanics. (Making the testers rage to complete level 4 and level 5)