Newly discovered prerelease footage of Super Mario 64 shows that underwater chests used to have an extremely large activation radius earlier in development, being able to be opened by swimming past them rather than touching them, which would have even worked from behind.

In the finished version, the hitbox Mario needs to touch to open a treasure chest is much smaller and near the front of it so in practice he has to swim all the way to its lock and physically touch it. While the hitboxes in the final game may be difficult to activate due to their precision, it is likely the ones in the early version simply offered very little challenge and were changed for that reason.

Lucky bear!!! 🐻

Top: artwork used for an officially licensed 2026 Mario Kart World T-shirt from Japan. It is a 2D rendition of a promotional render for the game.

Bottom: the original render, for comparison.

Top: in WarioWare, Inc.: Mega Microgames, the "Jump Forever" minigame is unlocked after beating Jimmy T.'s first stage. When it is first unlocked, the characters holding the jump rope are the stick figures from the "Jumpin' Rope" microgame.

Bottom: however, once Kat & Ana's stage is beaten, the characters change to Kat and Ana themselves, and it is impossible to get them to turn back to the stick figures on that save file.

As such, it is easily possible for a player to never see one of the two states of the minigame: either by only trying it out immediately after it unlocks and never again (which would only show the stick figures) or waiting until clearing the story to try it out (which would only show Kat and Ana).