Here is the full list of all 31 GOAT OF DUTY achievements.
Win 340 matches in any mode.
Win 50 FusRoArena matches.
Win 50 Gun matches.
Win 100 Team Deathmatches.
Send flying 50 opponents with the FusRoBeh.
Win 50 Free For All matches.
Kill 250 opponents with Explosions.
Kill 500 opponents with Headshots.
Cook 50 opponents with the Roaster.
"Don't move! He can't see us if we don't move."
Actually, your opponents will complete this achievement for you.
Detonate 50 opponents with the Grenade Launcher.
Impale 50 opponents with the Impaler.
Slice 50 opponents with the Ripper.
Kill 25 opponents with the Zero-G Saws. (Alternative fire)
Snipe 50 opponents with the LightGun.
Kill 50 opponents with Headshots.
Nail 50 opponents with the Piercer.
Don't expect they will explode for real.
Explode 50 opponents with the Missile Launcher.
Goats bodies are not made for flight. But they dont' know that, so they try it anyway.
Ram 25 opponents to death.
Also goats have their special place.
Yes, we developers make achievements for you, bug-seeking goats.
Push 50 opponents off a ledge.
Ram an opponent and kill him midair.
Bleat 100 times. (In this game)
Hit an opponent 5 times with Ram or FusRoBeh without making it touch the ground.
Kill 101 opponents.
Kill 25 opponents in a row without dying.
Kill 10 opponents in a row without dying.