Complete Mission 1
Earn a 3-star rating in both bonus missions
Complete M1-10 with at least a 2-star rating
Kill 100% of enemies in 3 separate missions
Achieve 'Master' rating for a mission
Use 100 power-ups
Destroy 1,000 asteroids in Bonus missions
Complete M11-20 with at least a 2-star rating
Kill 5,000 enemies
Earn 50 stars
Complete Mission 20 with a 3-star rating
Achieve 'Master' rating for all missions
Mission 1 completed
3 stars earned in both Bonus Missions
Mission 1-10 completed with at least a 2 star rating
100% enemies killed in 3 missions
'Master' score earned for one mission
100 Power ups used.
Destroy 1.000 asteroids in Bonus missions
Missions 11- 20 completed with at least a 2 star
5000 Enemies killed
50 Stars earned
Mission 20 completed with 3 stars
&Master& score earned for all missions.