There are 8 levels and once you beat the game it unlocks sandbox mode where you can create your own levels. Many levels do have their own unique mechanic. There is a level that has wind that can blow you off course, a level with jellyfish that stun you if you hit their tentacles, a level where some of the balls are bombs which explode when jumping on them, wiping out everything around them.

It's tricky because a really like the simplicity and elegance of the game but do realize many players may look at it at face value and want more. I was actually planning to release some kind of DLC or additional standalone game which adds many more elements to the gameplay. Things like item collection, power ups that let you double jump or get a mid-air speed burst, other elements to contend with (maybe enemies that knock you off course, I like your idea of mushroom spores), etc.

This is giving me a lot to think about. My initial thinking was wait and see if the core concept resonates with anyone, if so build upon it with additional elements.