I've already started making the sequel to Get A Gloob On and this is the demo, which shows what will happen at the end of the game once you get the three gloobstones and you have to fight Snoobert the evil clone of Gloobert in a final battle to save the Universe from the Glanglers. Z to jump, Arrows to move and X to shoot bullets.
The music is from hit game Athenian rhapsody now available on Nintendo switch, Xbox, Steam and PS5 probably.