Consider the following trailer idea.
We open on Mario constructing a course for Mario Maker 2. Instead of being joined by Luigi, however, Mario turns to find Toon Link further on in the stage, adding Rupees, Bokoblins and other Zelda elements.
Mario seems to be annoyed by this intrusion, and attempts to build more Mario elements up ahead, but Toon Link just rushes in and adds more Zelda elements to the scene.
And so these two proceed along the course, wrestling control of the theme from one another, until they come across a part of the course that has already been finished: multiple clusters of wooden crates.
Out of curiosity, Toon Link attempts to pick up a red crate. It begins counting down from 3 shortly afterwards. This startles Mario, which in turn startles Toon Link, who tosses the crate back onto the course... directly on top of a pile of Nitro crates. Both Mario and Toon Link are dramatically blown away by the resulting explosion. As they attempt to pick themselves up off from the ground, they are forced back down when a certain orange marsupial jumps on their heads in turn.
Striking a pose with a miniature box in his hand, Crash Bandicoot Goes N-Sane!
Luigi enters the scene, Poltergust in hand, ready to fight and avenge his brother. Crash also prepares to fight, in his own goofy way. Cut to gameplay reel.