it really is a cruel summer

This is something I made a YouTube short on:

The description on shorts isn't immediately visible so I'll repeat it (with some extra details) as it explains what's going on.

If you move far away enough from the cannon at the start of Sky Deck (Roughly the other end of the platforms you run along) for it to despawn, you can go back and re-enter it as it respawns in its original state.

As Sonic, this doesn't do a lot. However, if you do it as Tails, Sonic will be at the end of the stage by the time you finish being fired.

This is because going back in causes the cannon to warp Sonic to it, but due to the distance it takes him this causes his opponent AI to think he fell of the stage, so on the next frame it warps him back to a few steps ahead of his last known location (The advancement is to stop him getting stuck above pits)

Kell gave me a camera hack from his multiplayer code to focus on AI Sonic as it did this, showing how fast he moves.