I believe I may have set the "energy" goal a bit too high considering I didn't have the time to make the obstacles more diverse. I had plans for more levels, enemy types, random events, and even character customization that would have been unlockable through the score count. Deadlines are deadlines though lol.
Creating the art and music on my own was a big challenge because I didn't notice the competition began until about the 20th of November. I was a part of the 2017 contest as well and thought this one would start October. Fortunately, I still saw the update before the deadline and got something in that I've been thinking about.