Fill the rage counter to 25%

Collect a total of $1,500 cash

Fill the rage counter to 50%

Score a total of 25,000 points

Kill all aliens on level 5

Fill the rage counter to 75%

Score a total of 50,000 points

Collect a total of $5,000 cash

Fill the rage counter to 100%

Kill boss at end of level 10

Score a total of 100,000 points

Kill all aliens on level 15

Kill boss at end of level 20

Kill all aliens on level 25

Kill boss at end of level 30

Collect a total of $25,000 cash

Kill all aliens on level 35

Score a total of 500,000 points

Collect a total of $35,000 cash

Kill boss at end of level 40