Here is the full list of all 14 VOSS Turbo Demo achievements.
Visited the shop, for the first time.
Visited Planet Y, for the first time.
Visited the Ocean Rift, for the first time.
Visited a digestive tract, for the first time.
Visited the Sewer. Hopefully, for the first time.
Beaten the Mole Man.
Beaten a higher class Mole Man.
R.I.P. Living Statue.
Beaten Smiley.
Beaten the sexual tyrannosaurus
Beaten the Taped Chomper.
Beaten the Heart Chomper.
Beaten Dr. Brundle Stockman.
Beaten Willy's Dragon.