Defend the tower!

Your tower is under attack. Defend it at all cost.  There are 4 levels in total.

3 types of towers: blue one is bullet type, yellow one is missile type and red one is a slow down effect. 

3 enemy types: you will discover them. 

This prototype was made for me to learn about game dev. Specially singleton, pooling, factory pattern and  clean code practice. 

I know the game is not balanced for now. I might come back at it later ;)