Unnamed claw machine episode is a scrapped "Mugman" episode. It was animated in August of 2017. Lenard uploaded an unfinished clip to Lemur Extras on February 23, 2018. The video title is simply "claw".
It was scrapped due to Lenard not having a solid idea on the project.
The unfinished clip shows Mugman walking past a claw machine, only to come back to it and stare at it. The plot likely would've revolved around Mugman trying to win it.
- The only known clip is only available in 360p.