Doom on Neo Geo: Architectural Hurdles Make a Practical Port Unlikely
Ars Technica explains that the Neo Geo’s cartridge-only, sprite-based 2D graphics design lacks frame buffers and texture-access capabilities, making a functional Doom port impractical. Even a software renderer would struggle to render Doom’s textured, multi-level environments; the likely workaround is adding extra hardware to the cartridge (as with the SNES’s Super FX2). A Wolfenstein 3D-like raycasting demo might exist, but it wouldn’t recreate Doom’s full features, keeping a true port out of reach for the foreseeable future.