During the epilogue, Mark is standing to the left of 7-Zark-7 and Princess to his right. But when she bends down to kiss Zark, she is on his left.
After Mark tells Tiny to 'steer clear of the creature' and Tiny answers 'You know it', there is a panning shot of the fearful Sea anemone. On it's left side, it is behind a sand dune, but for a few frames it appears in front of the dune by mistake.