The goal of the game is to collect all the flags in the correct order: red - green - blue - yellow - magenta.
Use arrows to jump between islands. You can make simple or double jumps, but a double jump reduce your score like 5 simples jumps, so be careful when you use double jump.
To make a double jump press SPACE and a keyboard arrow.
Press SHIFT to have a top view
Finally, you score depend of the number of jumps and the time passed (so, don't think too much).
ice, penguin, world, jump.