Thanks for your feedback!
I'm glad you noticed that you can use enemies.
Any idea how to improve the controls?
I feel like these mini games should be more fast paced so I'd make jump more responsive (getting up and down faster).
Wow, I like your idea.
Maybe I should add a difficulty selection?!
In this case difficulty selection should affect interval between enemies shoots or/and bullet speed. Jumping dynamics should be the same for each difficulty.