Sonic Adventure DX 64

Single player only; this release has no multiplayer.

Start at Castle Grounds and explore Super Mario 64 as Mario, Sonic, Tails, Knuckles, Amy, E-102 Gamma or Big. Press M to choose a character. The SADX cast uses original character models, textures, action animations and sound effects read directly from your installed Sonic Adventure DX copy, plus movement driven by original SADX physics parameters with SM64 terrain collision.

Sonic: hold Left Shift to charge a spin dash, then release to launch. Press Jump again in midair to home toward a nearby enemy. Tails can fly, Knuckles can glide, Amy can vault, Gamma can hover and Big has his own jump and momentum. Normal SM64 doors, star requirements and key requirements apply.

Normal Play is player-controlled. Automated verification runs separately with private saves.

Requires an original USA Super Mario 64 ROM and the supported Steam Sonic Adventure DX installation (build 411939). Original game content is read in place into memory and is not included in this download.

Nintendo owns Super Mario 64; Sega/Sonic Team owns Sonic Adventure DX. MIT applies to newly authored bridge/gameplay code and sheets; third-party components retain their respective terms. Remixes are allowed.