I used hundredvisionsguy's set of gamer maker 2 Guides
I also used reference to Ask Gamedev video for a guide as well.
All assets drawn and used were designed by me
The Twist is that face an alien force and have the ability to suddenly spawn them by pressing the F key. Fire your Weapon by pressing the space bar. With Movement being doing by the WASD keys. And finally the V key to fire off a special beam designed to kill the Faces.