After the first Silver Crusader appears, Oom hides behind the wheel of the Armed Force. But as he does so his feet appear to run over part of the wheel instead of around it.
When Gillian turns to leave after punching the side of Herc's scope, he appears to morph right through the side of the console.
When Saw Boss says "As the fruits of their destruction grow to ripeness" the shadow on one of his head-veins disappears for a couple of frames.