Complete level 5.
Score 25,000 points or more in one Trial Mission.
Kill 1,000 enemies.
Take a total of 1,000 damage.
Kill 500 enemies.
Complete level 4.
Buy 9 upgrades.
Fire offensive weapons a total of 5,000 times.
Complete level 3.
Unlock your third gun.
Unlock 12 gallery entries.
Kill 250 enemies.
Complete level 2.
Unlock 6 gallery entries.
Buy 6 upgrades.
Unlock 3 gallery entries.
Complete level 1.
Buy 3 upgrades.
Buy 12 upgrades.
Buy 15 upgrades.
Kill 1,200 enemies.
Kill 1,400 enemies.
Unlock 18 gallery entries.