Wow....
I never give 1/5 or 3/10... but, no offense man....
I'm hard pressed to find a game that requires more luck, that isn't a casino style game, and yet is not entertaining in one form or another.
The 'platforms' were entirely too small for the speed of some of them, and there was no margin for error. One of my asteroids came within a millimeter of the next paltform, only to fall short by a slight error in timing.
And my asteroid fell out of my launcher several times!
So, sorry man, but... 1/5, 3/10, cause the idea was on the low end of acceptable, and was poorly executed.