The following comparison documents an act of censorship. At the time the game was released, Nintendo of America was pretty fast when it came to alter contents that might probably be considered politcally incorrect.
"Super Mario" doesn't require a lot of words because everyone knows this character. In 1996, the first RPG starring the master plumber was released for SNES in which Bowser made me little gesture that was removed from the game. It doesn't influence the actual content in any way. But for the sake of completeness, a comparison for movie-censorship.com has been made anyway.

Censored: Bowser's Gesture
In the Japanese Original Version for the "Super Famicom" (the Japanese name fpr the SNES), Bowser made a little gesture when he succeeded in battle. He crosses his arms, then he raises one of them. This gesture was considered "offensive" by Nintendo of America so it had been altered without hesitation. In the US Version, he now raises both of his arms in order to illustrate his victory.

In the comparison, it can be found both as gif and as single screenshots.

US SNES Version:	Japanese Original Version:

To make it easier to recognize, now the screenshots:

Screenshots:

US Version	Japanese Version