released demo with tutorial and first 3 biomes

added message to credits for demo

added Rebuild option in Modify menu to toggle permadeath

added Energy Whip upgrade which replaces laser with whip

added rotating blast tip and shockwave rings to laser

added dissipation timer to laser

added energy wheel fade from green to yellow when energized and depleting

adjusted floater model and colors, added boost effect, now spawn in gravity grotto

adjusted robot model, now flashes continuously when enraged

replaced gravity grotto key with +1 max HP up

fixed jackhammer hitboxes

fixed biome not resetting upon game completion when Rebuilding is active