When he emerges from the trash can, Fritz's outfit changes color from red to blue to red again between shots.
When Fritz is attempting to fix Winston's Volkswagen Beetle after it's broken down in the desert, he opens the hood. Since it's a Beetle and the engine is located in the back of the car, he goes around to the back but leaves the hood up. Throughout the rest of the scene, the hood alternates from either being up or down.
In the bar, the guy trying to get the last drops out of the bottle takes it off the table and tosses it in the air. When the table is seen from above after he tosses it, the bottle is back on the table not in the air. And then, the bottle drops on his head.
When Duke and Fritz leave the bar, the knife on the floor disappears.
During the scene when Winston and Fritz are out in the desert, Winston's shirt color consistently changes from being light red to being dark purple, during the entire scene.
Seconds before Duke was shot, he disappears in a quick frame.