SM64 as I remember it.
Digital Circus Ep 2 is OUT: https://www.youtube.com/watch?v=lmc0tpOHBHA&ab_channel=GLITCH
ALSO all the DC characters are finally plushies: http://digitalcircus.store
Big credit to @AndratVA for the Mario Kart 64 t-pose mod seen at 1:42 and @Unreal64 for the gameplay recording seen in the video! :)
And credit to Dan-GPTV for the shotgun sm64 mod seen at 7:24