Present Island
At the top right of the map on level 1 there is a hidden island with a load of preasents for the taking You will need rocket skates an innertube or icarus wings to get there
Ultimate Cheat
Pause the game then press the following button combinations
1 UP A B C
2 RIGHT A
3 DOWN B
4 LEFT C
You will hear a sound if you entered the code correctly Unpause the game and you will have all but one of the ship pieces collected The last piece will always be located on the next level