Here is the full list of all 18 Dusty Revenge: Co-Op Edition achievements.
300 Rats Killed
1000 Double Jumps
50 Bulls Killed
Hits 5 enemies with 1 Artillery Round
100 hit combo
1 Mole Killed
5 Suicide Jumps
1st Artillery Kill
Die one time
1st Use of Counter Move
1st Sniper Kill
No Death throughout the level
20 Moles Killed
100 Sniper Kills
All Combos Unlocked
Use melee only for 1 level
Climb 100 walls
Completed Boss Rush mode