Yo is clearly naked when he approaches Emu's bed, but after the love scene he suddenly has a white jockstrap on.
After the shootout and Yo gets up to approach Emu who was shot, Yo is seen wearing a protector under his jockstrap.
Netah holds his gun in his right hand when checking the wounded officers after the gun battle on the courthouse steps. In the next shot he has it in his left hand (which is his dominant hand in most of the film).
During the final gun battle, Yo fires the grenade launcher five times without reloading. He then pulls out a pump-action shotgun, but only fires it twice before discarding it.
The sleeve pistol Koh uses during the funeral gun battle holds a maximum of four rounds, but he fires it at least twice as many times without reloading.