when the intro is viewed
When the first level is completed
When the first 5 levels is completed
When the first 10 levels is completed
Complete flawlessly (100%+100%) 5 levels
Complete flawlessly (100%+100%) 10 levels
Soft bonus level #1 completed
Soft bonus level #2 completed
Hard bonus level #1 completed
Reached 10 "hearts"
When the first 15 levels is completed
You've finished the game
You found the secret level #1
You found the secret level #2
You found the secret level #3
You found the secret level #4
You found the secret level #5
Complete flawlessly (100%+100%) 15 levels
Complete flawlessly (100%+100%) 20 levels
Complete flawlessly (100%+100%) 25 levels
Soft bonus level #3 completed
Hard bonus level #2 completed
Hard bonus level #3 completed
You found the first secret artifact #1
You found the first secret artifact #2
You found the first secret artifact #3
You found the first secret artifact #4
You found the first secret artifact #5
Reached 10 lifes
Collected 10 grenades
Scored 50,000 points
Scored 100,000 points
Scored 150,000 points
Scored 200,000 points
Scored 250,000 points
Defeated the secret boss
You've found an entrance to the "hell" level
You have completed the "hell" level ideally (100% + 100%)