Let's Play NieR: Automata - Extras - head[Y] battle / The Final Quest
You must have all weapons upgraded to level 4 and have finished the prior Emil quests for this to become active. I would recommend projectile defense for your pod skills (all of them), particularly if playing on Very Hard, as all attacks are projectile based and there is a lot of them.
As for what weapons to use it's really up to preference, I did it with two different weapons to show it really doesn't matter. Crit+ weapons are generally the highest dps so if you're doing this fight below-level I would recommend a build based around crit.
Sponsor me to help support the channel directly!
https://gaming.youtube.com/watch?v=3LGhnms87oI&action=sponsor
Other Videos By Sleepyjo2
Other Statistics
Nier: Automata Statistics For Sleepyjo2
Currently, Sleepyjo2 has 14,255 views for Nier: Automata across 36 videos. This game accounts for over 1 day of watchable video on his channel, less than 0.62% of Nier: Automata video content that Sleepyjo2 has uploaded to YouTube.