You take a moon and throw it as far as you can, using the planetary gravitationnal slingshot effect to produce nice curve balls. The goal is to knock the most planets out of orbit. The fun never stops!
When you have unlimited powers, you can fold space and time. The most popular shapes among gods are swans and frogs.
You create a population on a planet. You then unleash earthquakes, tsunamis and volcanic eruptions and watch them scream and run! Gods never get tired of that one.