Place stuff from the shop using the money you win from waves. Next update will probably be an extremely hard map. The red bad guys are the basics, the yellow ones are super fast, and the blue ones have a health buff.
Accidentally unshared game while working on 1.8 .__. @warfame tutorial for code and things like that. 1.0 - Game released with one map and three towers. 1.1 - Added Medium and Hard maps! 1.2 - Sniper joins the battle! Long range and high damage, but a LONG reload time. 1.3 - Firestarter joins the battle! Basically shoots fire which does low damage but high speeds. 1.4 - Added Bonus Mode! Bad Income - Make income 0.5 per pop instead of one! 1.5 - Quad Billy(s) join! 4 little brother billys working together! 1.6 - Shop Redesign and title theme! 1.7 - God Billy Added! Better find out... 1.8 - Huge Selling Update! You can now sell things... but it's a little buggy. It deletes all of your towers but it does give you a full refund. Also I'm still working on it... ¯\_(ツ)_/¯