Quick Tip: After starting a new "Adventure" game, pause the game and set your difficulty to easy on the pause menu if you're only interested in achievements.


Kill boss at end of level 40

It is highly likely that this will be your last achievement. No achievements particularly require your attention (including this one) in this game as they're all almost certain to be gotten by the time you get this one without you even trying to get them. If you would like to stop using the guide here, you'll almost certainly still end up getting every achievement with ease.


Kill boss at end of level 10

Refer to Kingslayer


Kill boss at end of level 20

Refer to Kingslayer


Kill boss at end of level 30

Refer to Kingslayer


Fill the rage counter to 100%

This should be gotten within your first couple of rounds in the game. Just don't activate your rage mode until you get this achievement. This should take a couple minutes at most.


Fill the rage counter to 25%

Refer to David Banner


Fill the rage counter to 50%

Refer to David Banner


Fill the rage counter to 75%

Refer to David Banner


Collect a total of $35,000 cash

For this, just make sure to collect the packages that enemies drop as much as possible throughout the game. As long as you're doing a good job getting them, you'll get this achievement by the final boss with no issue. You do not need to save money to get this. This is based off of all money you've picked up.


Collect a total of $1,500 cash

Refer to Investment Portfolio


Collect a total of $5,000 cash

Refer to Investment Portfolio


Collect a total of $25,000 cash

Refer to Investment Portfolio


Score a total of 500,000 points

This will be gotten by the final boss. There's no real wiggle room for this achievement since you'll always be killing the same number of enemies based on your difficulty chosen.


Score a total of 25,000 points

Refer to Golden Boot


Score a total of 50,000 points

Refer to Golden Boot


Score a total of 100,000 points

Refer to Golden Boot


Kill all aliens on level 35

This achievement and the others like it are not missable. You have to kill every enemy in every round to progress, so pay these no mind, as you will get them no matter what.


Kill all aliens on level 5

Refer to Eye of the Tiger


Kill all aliens on level 15

Refer to Eye of the Tiger


Kill all aliens on level 25

Refer to Eye of the Tiger