Complete all the achievements

Complete the game and all the extra levels in arcade mode

Complete every extra level in any difficulty mode.

Complete the game in any difficulty level.

Complete the game in Arcade mode.

Start the adventure.

Complete an extra level.

Accomplish a +75% ratio of successful hits with weapons.

Jump on enemies to beat them in the same level.

Send some enemies flying in the same level.

Collect all 3 batteries in one level.

Finish level 1 in normal mode