They are his runs, but pretty much most of them are dubious, invalid, or have misinforming titles as the majority of these runs (or maybe even all of them) are just data files supplied to Doukutsu-rs, a custom engine programmed in rust. It's not the original games/roms on actual hardware or emulation.
(He also has been distributing """cracked""" versions of CS+ that, again, are just switch/Wii data files and the custom fan engine. He's banned from most CS discord communities because of all this, including the developers of said engine that want nothing to do with him).
thanks enlight
i did all of the TAS runs myself with the proper roms and proper emulators that support TAS
only one or two inside emulators doesn't support TAS
and doukutsu-rs are named multiplayer
i could name it [TAS] doukutsu-rs in the full story run