The Secret of That Slider is a ROM hack created by devwizard for the SimpleFlips' Slide Hack Competition (2024) ft. PirateSoftware, in which it was disqualified.
The creator of this hack has since been banned from RHDC. This is due to the deliberate use of ACE mechanics in their hack, which kicked into effect when the player fulfilled two conditions: using Parallel Launcher with RHDC intergration enabled, and having the username belonging to the host of the competition, SimpleFlips.
Stream 4 - Footage of this hack being played