Kill 1000 crawlers
Kill 10.000 crawlers
Kill 100.000 crawlers
Complete the tutorial
Get diamond score in the tutorial
Complete level in singleplayer mode
Complete level in multiplayer mode
Complete level only using the default weapon
Complete level without taking any damage
Kill 100 crawlers with one grenade
Kill 200 crawlers with one attack
Kill 100 specials
Kill 500 specials
Kill a jumper while it's in mid air
Kill a PillarBeast with one hit
Hit a jumper while it's shield is down
Free a player from a jumper root
Revive a knocked down player
Get rescued from limbo
Jump of the edge of the map
Have three active powerups active at the same time
Freeze time for 25 consecutive seconds