Little Game I Made to help APM

So basically like the title says I made a small game that is meant to be like a 2 minute warmup before a game to get your apm up. I did it as sort of a way to learn UE4 in preparation for a much bigger project that i'm now working on. Let me know what you guys think! 

The way you play it is pretty simple just hit the corresponding key with the color of enemy, ie. hit Q for the red ones.

Here is the link to the game (you'll need something to unzip a .7z file like win-zip or 7zip):