Here is the full list of all 14 Intrusion 2 achievements.
Smash enemies
Defeat them
Feed the fish
Defeat the Grabber
Perform headstomp
Defeat the MACE
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