Cannon Dancer: Osman

The game has a neat doppleganger mechanic which creates a lot of cool ways to manage your movement and optimize damage. The enemy placement also does wonders for controlling space and creates a lot of interesting spacing play where you have to not only be considerate of your positioning but also how you move to control space with your doppleganger. Some of the later levels do lame shit, but I generally dig the way this game mixes up movable space in level design.