Complete the following tasks to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", then "My profile", then "View all my games", then the game and view stats.
Absolutely Endless: Score 500,000,000 points in Endless.
Amethyst Caverns: Complete world 6 in story mode.
Argon Refinery: Complete world 8 in story mode.
Aurora: Complete world 2 in story mode.
Balls Galore: Launch multiple balls into play.
Bats in Arms: Score at least 500,000,000 points in Time Attack Co-op.
Better Together: Score 1,000,000,000 points in endless co-op.
Bff: Score 10,000,000,000 points in endless co-op.
Buddies Forever: Score 5,000,000,000 points in endless co-op.
Clock Blocked: Score at least 250,000,000 points in Time Attack.
Freon: Complete world 5 in story mode.
Friendly Fire: Score at least 150,000,000 points in Time Attack Co-op.
Fringe Benefit: Get a score of 12,500,000 in Bonus Mode.
Going Further: Score 200,000,000 points in Endless.
Granule Extractor: Complete world 3 in story mode.
High Speed Breaker: Score at least 100,000,000 points in Time Attack.
Kinetic Harvest: Complete world 1 in story mode.
Krypton Garden: Complete world 4 in story mode.
Marching On: Score 50,000,000 points in Endless.
Master Batter: Complete the entire game in a single game session without using a continue.
Neon Mines: Complete world 7 in story mode.
Old School: Complete a wave without using Blow, Suck, or a Shard Storm.
Overkill: Destroy the last brick with a fresh Shard Storm.
Shardenfreude: Collect 75% of all fragments on any wave.
Storm Warning: Trigger a Shard Storm.
The Boss: Defeat Boss Rush Mode in Under 10 Minutes.
The End of the World: Complete world 10 in story mode.
Time, Attacked: Score at least 50,000,000 points in Time Attack.
Twice as Nice: Score at least 1,000,000,000 points in Time Attack Co-op.
Xenon Home World: Complete world 9 in story mode.
Successfully complete World 1, "Kinetic Harvest".
Boss Rush mode
Successfully complete World 10, "End Of The World".