Open the “How To Play” menu and learn stuff
Complete one map
Complete five maps
Complete ten maps
Complete fifteen maps
Complete twenty maps
Fail a map
Let Brian Jar die!
Get five levels deep into endless mode
Complete a time bonus sub-objective
Complete the kill-all-creeps sub-objective
Order Brian Jar to move
Use one of Brian’s special abilities.
Configure a turret by changing its targeting priority
Upgrade a turret
Destroy a Gleep container before the map wave goal
Sell an Artifact
Play with a friend
Get a level-up
Get ten level-ups
Get fifty level-ups
Rush a wave
Complete 42 maps