Earn a kill streak of 40x or more.
Reset your kill streak timer by overkilling a corpse.
Clear the first tutorial.
Clear the Metroplex.
Unlock hard mode.
Earn a kill combo of 5x or more using a power shot (level 1).
Kill a yellow champion strider.
Unlock power shots.
Pierce an enemy's shield and armor using a tanzanite weapon.
Earn a kill streak that lasts an entire wave.
Build a level 2 turret.
Stun an enemy.
Earn a kill combo of 2x or more.
Earn a kill streak of 10x or more.
Clear the Rainforest.
Earn a kill streak that spans multiple waves.
Kill a green champion bruiser.
Destroy a medium-sized Space Jam piece before it divides.
Unlock runes.
Carry a weapon in each inventory slot.
Kill a blue champion grenadier.
Repair a barricade.
Lead the monsters through 10 tiles or more.
Lead the enemies through 6 tiles of a twinshot turret.
Kill a tubaki hunter.
Clear an area without using your weapons.
Earn a kill streak of 20x or more.
Unlock an item from Starlyn using relics.
Headshot an enemy with an amethyst rifle's power shot.
Defeat Space Jam.
Earn an extra $250 from a streak or combo using a topaz weapon.
Deal an extra 75 damage in a single attack from an onyx weapon.
Poison a high health enemy using an emerald weapon.
Add a gemstone to a weapon.
Earn a kill combo of 3x or more by overkilling a kamikaze.
Earn a kill combo of 4x or more.
Clear the Metroplex without using any towers.
Shock an enemy's shield using a sapphire weapon.
Build a meter in under 3 seconds using a pearl weapon.
Defeat Giggordo.
Ignite 3 enemies simultaneously using a ruby weapon.
Earn a kill combo of 6x or more.
Headshot 3 enemies simultaneously using a diamond weapon.
Heal while at 0.5 health using a bloodstone weapon.
Lead the enemies through 9 tiles of a pulse turret.
Earn a kill streak of 50x or more.
Earn a kill combo of 5x or more using a power shot (level 2).
Build a level 3 turret.
Lead the enemies through 5 tiles of a machinegun turret.
Earn a kill combo of 8x or more.
Earn a kill streak of 30x or more.
Raise your damage to maximum using a garnet weapon.
Win an epic item through gambling.
Lead the monsters through 25 tiles or more.
Kill a red champion vagabond.
Attack for 30 seconds without reloading using a peridot weapon.