Collect 500 points.
Collect 3,000 points.
Collect 10,000 points.
Complete Stage 3.
Complete Stage 1.
Complete Stage 10.
Play using the Drag control type.
Play using the Accelerometer control type.
Play using the Controller control type.
Complete a stage within 80 seconds.
Complete a stage within 70 seconds.
Shoot down a UFO.
Complete a stage within 60 seconds.
Shoot down an Invader's beam.
Lose to the Space Invaders.
Gain a 300 point secret bonus from destroying a UFO.
Accomplish the Nagoya Attack trick.
Accomplish the Rainbow trick.
Accomplish the Fossil trick.
Destroy a cumulative total of 1,000 10 point Invaders.
Destroy a UFO with your first shot.
Destroy a cumulative total of 1,000 20 point Invaders.
Destroy a cumulative total of 1,000 30 point Invaders.
Destroy a cumulative total of 100 UFOs.