Complete level 1.
Complete level 1 with 1 credit and no continues.
Complete level 2.
Complete level 2 with 1 credit and no continues.
Complete level 3.
Complete level 3 with 1 credit and no continues.
Complete level 4.
Complete level 4 with 1 credit and no continues.
Complete level 5.
Complete level 5 with 1 credit and no continues.
Complete level 6.
Complete level 6 with 1 credit and no continues.
Complete level 7.
Complete level 7 with 1 credit and no continues.
Complete final level.
Complete final level with 1 credit and no continues.
Get 20 points in bonus round.
Get 30 points in bonus round (1 credit)
Reach level 4 with 3 or more lives.
Reach final level with 6 or more lives.