I like how, if you lay an egg as a chicken, die, and reincarnate as a chicken again, you'd hatch from the egg! Since you're planning on coming back to this game, I think that this would make for some fun level design. Perhaps you'd need to lay your egg into a hole you're normally unable to get to (unless you're in your snake form; even then, this hypothetical level wouldn't use that form) to push a light crate somewhere?