Popokamiru Boss Fight
This oversized hornet is damn near impossible to floor unless you can find its weak spot. I recommend using the PFMs (Proximity Field Mines) scattered around the area to stun it. Once stunned, the monster will go belly up, exposing its weak spot. Shoot that before it recovers. Watch out for its attacks, they hurt a lot. Rinse and repeat until it goes down. Once the monster is defeated, it will fly erratically into the stalled truck and fall off the cliff. The truck's explosion will finish the unholy abomination off. You'll see another truck heading your way, but don't worry, it's Josh, coming to pick you two up.