Not bad, per say. I like the role reversal idea and you do play it for as much as you can. The challenge element is definitely there and you do include instructions on how to play. Potential, sure, but needs refinement.
It looks like the key to beating the last two levels is to get as far in as you can without drowning, then double-tap the bubble to recharge air and build a platform in front of the critter they can jump on.
Notes:
- The soap idea is neat, but... you don't have to really time to learn before you are already dead. This does make the last two a bit frustrating.