A very simple ball game built in Unity, using Javascript. The primary goal was to get more comfortable with Unity.
Brackeys' 
on youtube were a huge help in getting started. I made all the models in Blender, except for the enemy model, which I found in Brackey's tutorial package. I used free online textures and sounds, and the music is my own.
Gameplay screenshot:
To play on a Mac, open "topka_app_ready.dmg" and run "topka x86.app".