Invasion 360

Your favorite Invaders ~ with a Twist! (Get it? "Twist"?) :) What does (something): [LEFT|RIGHT] Keys/DPAD =  Rotate[SPACE] or [BUT1] = Fire/Continue (Hold or Tap)[M] = Toggle Music (i dig it; if you don't, you're welcome)[Q] or [BUT2] = Quit to Title (without Warning)Scavenger spawns @ 100 Kills each Wave 10 progressively difficult Waves Keys to Play: Enemies will occasionally Shoot, Change Direc…