According to MAME’s official documentation (driver.c / stv.c), this ROM set is flagged as GAME_IMPERFECT_GRAPHICS | GAME_NO_SOUND | GAME_IS_PROTOTYPE . More importantly, it is marked with GAME_NOT_WORKING and MAME_EXCLUSIVE_PRESERVATION .
Have you successfully run the SP5001ABIN exclusive? Share your experience in the comments below, but remember: do not ask for ROM links. Respect the preservation agreement.
Because of the legal and technical barriers, you likely won’t stumble upon this file by accident. But for those with the patience to seek out preservationist channels, the right version of MAME, and a love for obscure Japanese arcade prototypes, that single boot-up screen—glitchy, silent, and watermarked "MAME Exclusive"—is a digital artifact worth the hunt.