Smiley Adventure is a platformer game. You control a smiley face, and travel through 5 worlds and defeating enemies along the way. Start on the Ground world, then advance through water, air (flying through the sky using a jetpack), and underground (you are in the desert, where you have to dig wells, mines, etc. in the sand) worlds. Clear these to enter the white paradise world. Smiley Adventure is controlled with the arrow keys, and there is an online record table.