One thing is for sure, Nintendo makes games with a superb attention to every tiny detail.
Take this example: in Super Mario Bros. 3, there is a game mechanic where Mario can slide down a slope on his butt, taking out enemies along the way. However, he cannot do it while wearing a Hammer Suit, also a fairly rare object in the game. If you try to slide with Mario while wearing the Hammer Suit, he simply ducks down and becomes a Hammer Suit Turtle… or something like that.
But that doesn’t mean Nintendo didn’t actually include an animation for sliding in a Hammer Suit, because what if you happen to be already sliding down a slope when you acquire the suit? There is precisely one spot in the entire game where this is possible, and this GIF proves just how carefully Nintendo makes their games.
As you can see, when the player tried to get Mario to slide down the second slope, the suit refuses to cooperate.
Shoutout to SupperMarioBroth.com for finding and/or collecting all kinds of obscure Mario tidbits like this!