Play the game for 1 minute
Play the game for 1 hour
Play the game for 1 day
Lose 9 lives
Complete 1 wave with 1 second left
Complete 10 waves with 1 second left
Destroy 1 robot
Destroy 100 robots
Destroy 500 robots
Destroy 1000 robots
Destroy 2000 robots
Destroy 5000 robots
Destroy 10,000 robots
Deploy 20 turrets
Deploy 50 turrets
Deploy 100 turrets
Deploy 200 turrets
Teleport 25 times
Teleport 50 times
Destroy 25 barrels
Destroy 50 barrels
Destroy 100 barrels
Collect 50 pickups
Collect 100 pickups
Make 25 multi-kills
Make 50 multi-kills
Make 100 multi-kills
Make 200 multi-kills
Complete 1 campaign wave
Complete 10 campaign waves
Complete 50 campaign waves
Complete 100 campaign waves
Complete 200 campaign waves
Complete 500 campaign waves
Complete 1000 campaign waves