Super DSP World was a project i worked on three years ago.
It's a ROMHACK of Super Mario World for the SNES, which i created as a fun time waster a few years ago.
How to play it? Any SNES emulator will do. It even works with SNES emulators on phones, although playing this with a touch Dpad is a fucking nightmare.
The game contains levels inspired by DSP memes, and is chock full of quotes, memes and characters from DSP's 2015 lore (back when Pandalee was still together with Phil, and Project 7 was supposed to be rebooted).
Most of the levels in the game are completely original, with level design that will remind you of DSPisms, like Beginner Traps, Bugged Mechanics and Bullshit.
Some of the later levels also feature original SMW level design, remixed to be more challenging/bullshit.
The level design, while designed to be challenging/difficult/bullshit, is also completely fair. In fact, you can complete the game with no save states at all. Although i recommend using save states for a first playthrough, otherwise you might rage like DSP.
The game graphics have been edited so you play the game as DSP (guest starring ReviewTechUSA as player 2), facing off against some of his most popular detractors. The in-game text contains references to events from 2015, with all the DSP lore of that time.
It has been playtested numerous times, and should be relatively bug free.
The game was played by quite a few in the detractor community, but, never got much exposure on YouTube. I think a few years ago someone made a longplay of it but then that channel got nuked so now it's gone.
If you like Super Mario World, give it a try. Even if you don't care about DSP lore, i've been told the game is a fun platformer.
PS: Unfortunately the game was released before the fappening, so no references to that. Don't expect to see any stuff about Kat either.
EDIT: I have since started a screenshot LP of the game.