Other mistake: Throughout the episode, including the very first shot, we see the sun is shining brighter and hotter than usual. This lends credibility to the theory that Superman's powers are responsible for increased solar activity. Later on in the episode it is revealed that the heatwave is being orchestrated by Lex Luthor, who is is heating an underground river to coincide with Superman using his powers. Lex does not however have any control of the weather, and no explanation is offered for why the weather conveniently 'played along' with his plan.
Other mistake: After the teens leave the command center, Rita sees this and orders the creation of her Putties. Her henchman slaps down a few things of clay into a mold loosely, that then show the perfect figurines of the putties coming out of them. However with the shape of the mold, there is no way that the clay would come out in shapes like that or with that detail. (00:11:35)
Other mistake: While Sonic and Tails are locked up in old Spelunk's cage during the cave-in, right before the huge diamondius crashes on top of the cage, there's a close-up of Sonic holding the bars, and the color of his torso becomes the same as the background mid-shot.
Suggested correction: Given that these are literal monsters and a witch living on the moon after being imprisoned for 10,000 years, I don't think we can say for certain what their machinery will do.
LorgSkyegon
This is speculating too much. Practically making the same argument that it's OK because magic. The general physics of what is being displayed on the screen doesn't match up with how the clay fits into the mold even in the slightest.
Quantom X ★
What Quantom is saying is that they are using a press die to create the mold for the putties and no matter how you look at it, the volume of clay going into the mold is not enough to create the detail seen on the putties.
Ssiscool ★
It's not just that, but the shapes don't match up at all. He does the equivalent of putting clay into a round hole and getting a square out of it.
Quantom X ★