Update: August 31st 2025
The Fear can be beaten with the trap (apparently only in Legacy Style)
Before the fight:
get the IR goggles in warehouse 1 before the fight, put on ez gun and stun and enter the fight
Video Example by Hau5test:
https://youtube.com/clip/UgkxxD5Hl41zfjJ1e6u3YMYeAsPHT2nkeUwo?si=IfxDRuS-dnlxFwK0
first 50% of stamina bar can be done via a simple loop found by Jaguar_King https://www.twitch.tv/jaguar_king/clip/DoubtfulSpikyHornetOSfrog-tzYgMrbmQkZwhSv9
by BIG BOSS