Here is the full list of all 22 Scavenger of Dunomini achievements.
Score at least 250pts in single player mode
Score at least 500pts in single player mode
Score at least 750pts in single player mode
Score at least 1000pts in single player mode
Score at least 1500pts in single player mode
Score at least 2000pts in co-op mode
Get a golden upgrade capsule
Recycle 15+ dirts
Recycle 30+ dirts
Exhaust 10+ AA batteries
Destroy more than 30+ blocks with bombs
Build 5+ Sniper blocks
Build 8+ batteries
Build 20+ cables
get 3x different shredder upgrades
Open up to 10x crates
Build 8+ life blocks
Crush a droid with a sliding block
Kick a droid away
Get melted by the red laser
Score at least 300pts building only blasters and upgrade capsules
Dig 15 feets under the ground level