City Siege 3: Fubar Level Pack features 30 brand new levels. It also has additional troops and a lot of updated features, for example, Mech and Jetpack Guy from Alien Siege, Updated Spy (now a full-blown ninja who can throw stars), new baddies, an updated engine, etc.
ThePodge developed this game.
Web browser (desktop and mobile)
Click on a unit to activate a unit. Use the WASD keys or the arrow keys to control a unit.