Really love the concept! Especially the weird little voices and playing with the different heights/jumps. The 7th level seems to be uncompleteable however, unless Im missing something perhaps, or ran into a glitch. Would be cool to have a goal of a set amount of units to use for a particular level for bonus points, like use 5 units or less in level 5 to get a bonus points or a power up for the next level maybe.
Anyway well done, would love to see where you take the concept :)