Here is the full list of all 30 DiscStorm achievements.
Complete the Haunted Mansion in single player
Complete the Jungle Temple in single player
Complete the Tutorial Dojo in single player
Complete the Robot Factory in single player
Complete the Space Platform in single player
Complete the Pirate Ship in single player
Complete the Abandoned Mine in single player
Complete the Volcano Lair in single player
Complete the Enchanted Forest in single player
Complete the Museum Heist in single player
Achieve A Rank on any 5 levels in single player
Achieve A Rank on all levels in single player
Try DiscStorm in multiplayer
Play multiplayer in the most walrus-like way you can
What's the stupidest thing you could do with a Deathdisc?
Play multiplayer, get the Deathdisc first, then pull off the perfect shot
Demonstrate complete mastery of the Tutorial Dojo
The longer you play, the more you unlock!
Legends speak of a Discmaster who could hit 4 target dummies in a single shot...
Awarded for skilful use of Deflect
Win from inside the minecart
Dominate in multiplayer Survival
In Timebomb, make your move at the last possible second
Defeat the Ninja Master without using any of your own discs
Grab the crown first, and hold on for dear life!
Good guys don't throw discs at rhino bots
Set phasers to Stun
Deal with the Lava Lord, fast
Stun a player through a bookcase