Enter the Supersonic Hedgehog! - S1-E1
Revealing mistake: There is a scene near the beginning when the camera is behind Tails, Knuckles, and Amy, you see that the explosion of Chaos Control engulfs the land, yet, if you look carefully, you'll see it doesn't get any closer to them, rather the ball just gets bigger.
Clash!! Sonic VS Knuckles - S1-E5
Revealing mistake: Right at the end of the episode, when Amy is telling Knuckles he should apologize, Amy has two right hands.
Answer: No, he doesn't need the money. He was doing it to try to paint himself as the hero. Make it look like only he could save the the light and painting Sonic as a villain for destroying it.
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So what if Eggman doesn't need the money. There are tons of people who don't need more, but still try to get richer.
But not Eggman. His goal isn't money in the series at all. He hardly even ever mentions it. He wants power, fame, and to rule the world. In fact, he comes from a world where money isn't exactly a thing or much of it. So he doesn't have that in his roots of desire, he wants power.
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