Plays good, looks good for being an early demo. Would be nice to have an explanation of what the different elements do, some of them like light I kind of had to keep guessing and spamming them. Feels a little hard to stop in place to get things like powerups or hit the bubble columns, but that might have just been me not being used to the controls. Having to hold tab to access the upgrades feels a little awkward under pressure, wouldn't mind it being a toggle