This Seeking Tech Guide will explain how you can beat Famed Mimic Gogo after provoking him in Final Fantasy V Pixel Remaster.
Preparation
Before you enter the battle, you should complete all the other side quests and play through the story up until the very last save point in the final dungeon.
At the very least, you should obtain Flare, as well as all the high-level white magic spells. The White Wind and Mighty Guard blue spells are extremely helpful in this fight. If you don’t have them, then you can use Curaga for healing. You should also use Shell and Protect to help reduce damage as an alternative to Mighty Guard.
In terms of abilities, you should have three of your party members focus on healing and support. The final party member should focus on attacking with a combination of Spellblade and Rapidfire. You should probably max out all job classes and then use Freelancer.
When it comes to the equipment, equip Hermes’ Sandals for all party members. This will give them auto-haste. Aside from that, you should give your most powerful weapons to your attacker.
You can find Hermes’ Sandals in the hidden armor shop at the Phantom Village.
Battle
When it comes to the actual fight, have your main attacker use Spellblade, and then select Silence. Have the other three party members on standby until your attacker gets another turn.
This time, have your attacker Rapid Fire. Immediately afterwards, have one of the other party members use Mighty Guard. If you don’t have Mighty Guard, you can use Shell and Protect instead. Have any of the remaining party members heal if necessary.
If you are lucky, you should be able to silence Gogo. This will prevent him from casting Meteor. If Gogo hasn’t been silenced, then the fight could still be winnable although you will end up struggling a lot more.
Once your attacker gets another turn, you should use Spellblade, and then select Flare.
For the rest of the fight, your attacker should use Rapid Fire, while the remaining party members heal and provide protection if necessary.