Here's what I have made for Ludum Dare 38 (had a sleepless night):
You are staying on an Island - your small world which is the only thing you care about. You want to live there peacefully but you have made enemies (too many). So, they are going to attack your Island. How long can you protect it?
Controls:
Left Click: Shoot
Right Click: Move player
Try it and enjoy! Let's how good a Island Guard you are.
http://bit.ly/2q98G8S