Here is the full list of all 14 Intrusion 2 achievements.
Defeat the Grabber
Defeat them
Defeat the MACE
Feed the fish
Smash enemies
Perform headstomp
Shake Shake
Get the stalker trapped
Burn enemies
Get sword mech to the end
Get rifle mech to the end
Harpoon mech FTW
Complete game on high difficulty
Find the Relic