I would create a car racing game. You could choose a puffle to race in your car and there could be obstacles for you to avoid. You could us the up arrow on your keyboard to move forward, down arrow to move backwards, left arrow to move to the left, and right arrow to move to the right. There could be three worlds that could beat. World 1 could be grasslands, world 2 could be candy land, and world 3 could be like a baby nursery in a house. Each time you complete a level, you can get more parts to build a toy car to put in your igloo to access the game from your igloo. There could be 3 different cars, 1 for each world. The car colors could be white, blue, and yellow. I think that type of game would be fun, and I think penguin would enjoy it.
Waddle on CP! :)