Full list of all 43 Armed and Gelatinous achievements.
The base game contains 31 achievements, and there is 1 DLC pack containing 12 achievements.
Play all 4 levels on Gaseous Galaxy
Play all 4 levels on Gnarly Gnebula
Play all 4 levels on Globulus Glacier
Get 10 Dash Kills in a 4P Blitz match
Score a Touchdown by catching a pass from one End Zone to the other
Get a Dash Kill in a 4P Bombardment match
Collect every Dodge Ball in a 4P Bombardment match
Defeat 3 Cruel CPUs in any 4P Battle match
Defeat 3 Adept CPUs in any 4P Battle match
Get a Kill with the Stinger from the afterlife
Win any 4P Battle match without getting a single Dash Kill
Win any 4P Battle match (with guns) without firing a single bullet