[sircastor]

There’s a lot in SMB that we take for granted, but I didn’t understand as a kid. The physics system made the action feel real. The the subtle animation of the coins rotating in the air (actually part of the background, interestingly) gave the levels fullness. It was a really impressive achievement compared to the competition at the time (which of course had been destroyed by the video game crash of 1983)

[HideousKojima]

The coins in SMB don't rotate. They have a glow animation (as do the question mark blocks) but no spinning.

[LocalH]

But the coins in SMB3 did rotate, as they did pretty much in every game since. So it's an easy confusion.

[sircastor]

You’re right! I got them mixed up.