Even if a user owns a physical SSBB disc, breaking its CSS-like encryption to create an ISO violates the DMCA (17 U.S.C. § 1201). This makes all SSBB ISOs legally suspect, driving the entire practice underground.
Project M (PM) was a fan mod that restored “competitive physics” to SSBB. PM’s distribution was legally clever: it required users to patch their own SSBB ISO. In practice, forums like Reddit and 4chan’s /v/ hosted pre-patched “PM-ready SSBB ISOs,” effectively laundering piracy through modding. ssbb iso