As far as time, this game doesn’t suck it as much as a black hole (which you have to avoid with a well-placed GPS shot), since there’s only 25 levels. That may sound like a lot, but once you get the hang of it, they fly by pretty quickly.
The object of the game isn’t always shooting for the easiest path to the ship, but shooting Kevin on a complex path to hit spinners that give you points for both accuracy and distance. It’s almost like a space-themed pachenko machine. Enjoy.