A 2D space shooter where you can mine asteroids, fight enemies and upgrade your ship with weapons and other modules.
A little 2D pixel RTS where you control a bunch of cute units, build cute houses and reproduce in an... propably very cute way.
A 2D hack'n'slay. You can fight (immovable) enemies, collect items and use magic.
A 2D shooter where you build up a bubble tank and shoot other tanks to collect even more bubbles. Various weapons.