Here is the full list of all 50 Pewt 'em Up! achievements.
Unlock all achievements.
Clear a stage without shooting once.
Destroy 250 asteroids or enemy ships by ramming them.
Collect 5k quartz fragments.
Achieve a score of at least 1M in endless mode.
Achieve a score of at least 250k in endless mode.
Collect 1k quartz fragments.
Achieve a score of at least 100k in endless mode.
Achieve a score of at least 9001 in endless mode.
Collect your first quartz fragment.
Beat stage mode twice.
Beat the game in Ace Mode.
Buy all available upgrades in the shop.
Buy all Recharger upgrades in the shop.
Buy all Shield upgrades in the shop.
Buy all Armor upgrades in the shop.
Self-destruct your ship by using the bomb.
Use the bomb for the first time.
Buy all Items in the shop.
Collect 50k credits.
Destroy 500 enemy ships.
Destroy 100 asteroids or enemy ships by ramming them.
Destroy 10k asteroids.
Enter the sacred code in the main menu.
Watch the post-credit scene.
Watch the credits until the end.
Beat the game in Cadet Mode.
Beat the game in Rookie or Cadet Mode.
Defeat Varik Gorr.
Level up Egg-kun.
Hatch the egg.
Unlock the Silver Wing.
Buy all Weapon upgrades in the shop.
Buy all Ship Parts upgrades in the shop.
Buy all Reloader upgrades in the shop.
Destroy 1k enemy drones.
Collect 10k credits.
Destroy a divider ship.
Unlock the Valkyrie Type MA.
Destroy 100 enemy ships.
Destroy a battleship without the Silver Wing.
Collect 1k credits.
Destroy 10 asteroids or enemy ships by ramming them.
Destroy a bumper ship.
Destroy 1k asteroids.
Destroy 10 enemy ships.
Destroy 100 enemy drones.
Destroy 100 asteroids.
Destroy 10 enemy drones.
Clear a stage without being hit once.