Here is the full list of all 20 ARK BOX Unlimited achievements.
Reach the max. Ark size in a Stage
Collect 100 Power Ups
Collect 10 red Zonk Items and loose all size upgrades
Finish a Stage in a max speed Arcade Run
Finish a Stage on the highest difficulty level
Create 10 complete Stages
Download and play 10 new stages
Create a stage and share it!
Fire 100 Missiles
Destroy 100 incoming enemies
Destroy 1000 Blocks
Finish a 100 x combo or higher
Survive 10 Bossfights
End a stage with 3 active balls
Install all permanent Ark Upgrades
Finish a arcade survival run
Complete all Stages in Free Play and Arcade
Finish all Free Play Stages
Fire 1000 Bullets with the Ark Blaster
Finish a Arcade Bossstage on max speed and difficulty