Instructions
Bypass Los Gigantos Boss Fight
Enter the castle room where you would fight two Gigantos at once.
Climb the ladder.
Ride the zip line down to the switch that opens the trap door.
Repeat Steps 2 and 3 as quickly as possible until you reach the zip line before it returns to the top.
Ride the nonexistent zip line down. This will trap you inside the wall.
Turn right and walk through the wall into the next room.
Instantly Kill the Gatling Gun Ganados
Use the Rocket Launcher to destroy the gatling guns before you enter the event area. Mike will be helping you at this point, and this will be possible only after triggering the second wave of enemies.
Go past the shutters.
Watch the Ganados run to the destroyed gatling guns and die instantly.
Quick Reload
Start a reload sequence.
Use the dodge move while reloading.
Check your weapon. It will be fully reloaded.