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