We have 1 cheats and tips on GameBoy. If you have any cheats or tips for Cool World please send them in here. You can also ask your question on our Cool World Questions & Answers page.
At the 'Title' screen hold Up and press A + B, 8 times. You will hear a confirmation sound if you have entered the code correctly. Then at the 'Title' screen hold Down + A, and press B to change the level.