Space Invaders/YMMV


 * Genius Bonus: The names for some of the stages in Infinity Gene.
 * The very first stage, "Common Descent" is like that of an old-school arcade space invaders game. These invaders are the common ancestor of the other enemies you will soon face, hence the other enemies share a common descent.
 * The final stage (after the Final Boss), "Back Mutation" has you fight a single lone invader in an old-school arcade format. A back mutation is a mutation that reverts a gene back to its original self.
 * "Struggle for Existence" has a Boss Rush of 8 or so minibosses before encountering the real boss itself.