I love the artstyle of this game everything is so pretty. The sound design is also very nice. Like other people have said, a speed upgrade would be great. I never found myself buying the teleportation orb because I didn't need it for anything and it seemed that using that money for upgrades instead would benefit me more. The way the core flashes could cause problems for photosensitive people, you might want to add a warning in the game's description. The robot guy you play as is so sill- ahem I mean serious and I love them so much.