Full list of all 110 UpGun achievements.
The base game contains 101 achievements, and there are 5 DLC packs containing 9 achievements.
Explode 15 pumpkins
Explode 50 pumpkins
Open 24 presents during the winter event
Hit multiple target at once with your laser
Eliminate 5 players with your rifle butt.
Eliminate 50 players with your rifle butt.
Assist 25 eliminations
Assist 100 eliminations