I have the basic game mechanics done. The concept is travelling around the level to collect the gems. Each time a gem is collected, the level “shapeshifts” into something harder to get the next gem. There are also bullets to dodge and other enemies to avoid. Spacebar shoots an orb which slows the enemies and slows the rate of fire of guns, making things a bit easier. Current name for this is “Trapped in the Void”

Edit: Not sure why the GIF isn’t working. It is supposed to show the main gameplay…