Here is the full list of all 18 Lost Nova achievements.
Picked roses for the princess.
Shipping and handling not included.
You fixed your ship, saved the world, and helped out a giant worm. What's next?
Filled the museum with priceless artifacts.
"Come on down to Brian's Blasters: you'll love the way you blast."
He pinch.
Pumpkin!
Pushed a block where it needed to be.
The theme of the game.
Witnessed the righteous fury of Sir Corv.
Expensive headwear.
"What a novelty you are."
Pet every bunny in every town.
Planted flowers.
Made a small friend.
Quadrupled the opportunity for science.
Reached the lowest level of the Silkgem Mines.
Attended a concert of three best friends.