How long did it take to make this?
hard to say, as this was my learn'n'create game, so lot's of things i just tested if it's possible to do them and removed, original version even had accelerometer bouncing (tilt right to bounce farther and lower, tilt left to bounce higher but with less speed) - but this was removed. the whole game probably could be done from the scratch in one week if it was the only thing you're doing say full 5hrs / day.
Also I noticed some other games made by you in the android market, did you use Construct to make those too?
yes, every single one of them was made in C2. right now I'm working on multiplayer PvP dice game, I will post it in "Your Creations" when done :)