On Nov 1, 2026, modder Zombie1234 posted Portal Gun v1.0 for sm64coopdx, the online co-op Super Mario 64 PC port that boots from a player-supplied .z64 ROM. The listing ships separate PC and mobile zips. I haven't played it. This is based on the GameBanana page, sm64coopdx.com, the Coop DX mods FAQ, and gamerbrowser.com's Nov 1 write-up.
Zombie1234's GameBanana description, verbatim:
This mod adds in... The Portal Gun! And that's really it, you shoot portals, and fizzle them. It still keeps Mario's movement so you can beat the full game with it.
What v1.0 includes
Per the GameBanana files table, downloads are extarct_me_.zip (PC, v1.0) and extract_me_mobile_.zip (mobile). Both archives showed Clean in GameBanana's scan column when we checked Nov 1 afternoon UTC. The page lists version 1.0, credits Zombie1234 as author, and licenses the work under Creative Commons Attribution-NonCommercial-NoDerivs 4.0. GameBanana's AI Usage panel marks Code/Logic: Minor; all other listed categories are None.
The host is the same BYO-ROM stack we track in Bring Your Own Game and ER Mario: sm64coopdx.com describes up to 16-player multiplayer, widescreen, uncapped FPS, and a Lua modding API. Unlike Lucas Martinic's mixed-reality Mario 64 port, this is a small gameplay mod you drop into an existing install, not a new engine fork.
We did not find an X or YouTube clip tied to this specific v1.0 upload when we checked Nov 1 afternoon UTC. Other sm64coopdx mods have mixed Portal mechanics with Mario before; this listing is a new, standalone Portal Gun drop by Zombie1234.
gamerbrowser.com filed the drop under its mashup wire on 2026-11-01 and notes the mod zip includes no game files. For how decomp-based Mario hosts differ from one-off clips, see recomps, decomps, remakes, demakes, mods, ports, mashups.
