Shoot down 300 UFOs

Use all power-ups

Destroy 150 basic turrets

Push 40 buttons

Kill 50 enemies disabled by the EMP

Exit the reactor level with less than 1s before the reactor explodes

Kill 200 enemies with a Spreadshot

Kill 125 enemies disabled by the EMP

Crash into the star without any fuel

Reach 10000 score in Arcade

Destroy 150 asteroids in the solar system

Kill 25 enemies while under the effect of Overload

Complete all 6 planets in 4 solar systems

Retrieve 100 rescue pods

Kill 25 enemies with a Railgun shot

Complete all singleplayer missions

Complete the first solar system without losing a life

Complete all 6 types of planets

Kill an enemy by leading it to the laser cannon