Save at a beacon

Destroy a crate

Equip a skill

Fill all your inventory slots

Clear the fallen rocks on DROPSITE

Find all walker leg parts on DROPSITE

Fix all damaged doors on SARGASSO

Guide the transport walker to the Eastern drill site on HYDROTHERMAL

Operate a giant beam device on RUIN

Make 4 power seeds on SARGASSO

Collect all special gems on HYDROTHERMAL

Capture and jail 4 pirates on WRECKS

Solve both switch puzzles on FORTRESS

Solve the giant ring puzzle on CATACLYSM

Defeat the infected drill

Weed out the rogue experiment

Vanquish the giant worm

Shatter the 3 saw machines

Ruin the ancient guardian

Pulverize the pirate battleship

Suppress the infected transporter

Annihilate the final opponent

Complete Arcade Challenge Mode in Normal difficulty

Complete Arcade Challenge Mode in Hard difficulty

Collect a weapon pickup in Arcade Challenge Mode

Collect 10 weapon pickups in Arcade Challenge Mode

Collect all cats when completing Arcade Challenge Mode in Normal difficulty

Collect all cats when completing Arcade Challenge Mode in Hard difficulty

Destroy the pirate ship mini boss in Arcade Challenge Mode

Destroy 1 giant crab in Arcade Challenge Mode

Destroy 30 turrets in Arcade Challenge Mode

Destroy 40 yellow snaking enemies in Arcade Challenge Mode

Destroy 25 tough crabs in Arcade Challenge Mode

Destroy 50 green spinner enemies in Arcade Challenge Mode

Destroy 20 small rising jellyfish enemies in Arcade Challenge Mode

Destroy 60 blue paleofish enemies in Arcade Challenge Mode