The film has been mirrored in some of the docking scenes. When Mega Robot 2 is walking up to the dock at Crystal Vista carrying Leda and Annie the dock is on the left side of the robot. However, the attendant opens the door on the right side of the cabin (Leda and Annie are sitting in the back corner of the cabin). After the passengers exit the camera switches to an outside view and you see the left side of the robot and no docking tower. Later, when Mega Robot 2 arrives with General Wa-Lee you again see the docking tower is on the left side.
Following the gun battle after crashing in the wastelands, Stumpy finds a canteen on one of the dead hostiles. He picks it up, smells it, and says "tequila" as he hands it to Drake. Drake refuses it and throws the canteen away which obviously has no fluid in it by the way it moves, the lack of spillage, and that it makes a distinctive "hollow sound" when it lands.
After Drake gets punched in the nose, there is a cut and then he has no damage to his face, then there is another cut and he has lipstick on that is supposed to look like a bloody lip.
At the start of the movie, passengers are told to attach the body harness over each shoulder, but all of the belts are clearly single-shoulder.