METAL GEAR SURVIVE
51 Achievements
1,000
200-300h
Bad Meal
You fed a metal drum to a Boss Creature Details for this achievement will be revealed once unlocked
15
0.11%
How to unlock the Bad Meal achievement in METAL GEAR SURVIVE - Definitive Guide
After beating the main story you can randomly find a red circle on the Dite map that says "powerful enemy detected". If you go there you'll find an enemy called Big Mouth. One of his attacks has him try to bite you. If that attack hits an explosive barrel gadget he'll eat it, take damage, and you'll get this achievement.
Some tips for fighting him. If you are using the scout subclass the stealth ability and fox step ability will let you easily clear all the basic wanderers in the arena and place some barrels. A purple shotgun with about 70 rounds should be enough to kill him. His first phase is pretty easy if you don't have any additional enemies, just hide behind a pillar in the arena and when he's not shooting you can pop out and shoot him a bunch. After he staggers from the shotgun he'll usually try a bite attack so you can place a barrel at this time if one isn't nearby. His second phase is a bit harder since his attack is a bit more instant but you can use the cloak to get in free hits and then hide while waiting for it to recharge.
Explosive Barrel can be found North of teleporter 9 on the main map. Following the bounds of the map on the east side it should be the second container north of that teleporter on the attached map.
No longer missable since boss can spawn in daily/weekly missions.
Addendum: As of most recent patch (4/3/2018) boss side missions now reappear in single player and can appear in new areas. Just refought bigmouth on FOB map half way between T6 and T7.
I got a map of all the containers I've found here.
http://xboxdvr.com/gamer/fallouthirteen/screenshot/8320696
http://xboxdvr.com/gamer/fallouthirteen/screenshot/8320702
http://xboxdvr.com/gamer/fallouthirteen/screenshot/8323540
This can always be done in private Co-op if missed the first time.
-CO-OP Missions.
-Tab over to RESCUE MISSION.
-Choose Rescue Mission: [Forsaken Ruins].
On the mini map, the large red diamond is Big Mouth.
There are only two boss creatures and only one of them has a mouth so that's the easy part. When you fight Bigmouth for Suppression you will notice he has a number of attacks. One of them being the Bite, where he takes a leap back and then rushes forward with open mouth in an attempt to munch you. Make sure you craft Metal drums before you go and meet Bigmouth. Stay close to him to trigger his Bite attack, plant a Metal drum in his path and hope he munches it. This sounds easy but might take a few tries so make sure you max out on the drums you take with you.
To be sure you get the idea, here's a video:
Video by DirtyFishy link
Video guide .