Easier and Harder Games
At the Title screen press L7x on Controller Two for Dynamic difficulty setting which is super easy. Or press R7x on Controller Two for Almanic which is super hard.
At the Title screen press Select7x on Controller Two. If done correctly you'll have a sound.
9 Special Weapons
At the Title screen press Start7x on Controller Two. If done correctly you'll hear a sound.
Player Two Controls Boss
Begin a normal game with Player Two holding L R on Controller Two.