Train fast decision making. A simple game, usually impossible to pass.
There is a birthday party in the middle of the ocean and only 150 jumps for a kangaroo to reach it. First blocks are already there, you have to continue building the rest – by placing selected sets of blocks on the map.
On easy and medium levels you control kangaroos jumping, on hard levels it jumps by itself – always every three seconds.
Easy levels are meant to be treated as practice before the real challenge that awaits in the hard ones.