Really cute game! I love the graphics and the concept, it's a great idea.
I got to level 10 with more than 125 jellyfishes. The feeling of getting more and more powerful is really great. Is there an end?
I had a lot of fun, I just wish the game got harder over time or the upgrades would cost more and more.
There is no incentive to go fast, so you can just go slowly and it's almost impossible to lose that way.
I didn't understand what Z and X do during gameplay.
Awesome work! I liked it a lot.