Complete the indicated task to unlock the corresponding stamp.

Stamp	How to unlock
Blue Spaceship	Destroy the Blue Spaceship.
Boss Alien	Destroy the Boss Alien.
Destroy Fighter	Successfully destroy your captured ship.
Dragonfly	Destroy the Dragonfly.
Dual Fighter	Successfully destroy the enemy holding your ship captive.
Maple	Destroy the Maple.
Perfect	Win a perfect game in the Challenging Stage.
Scorpion	Destroy the Scorpion.
Stage 10	Reach Stage 10.
Stage 20	Reach Stage 20.
Stage 30	Reach Stage 30.
Stingray	Destroy the Stingray.