Thank you for bringing this up because I’ve always wanted an answer but forgot all about it. I watched it in slow mo and still can’t determine how tf he did it. The die just stops and then goes in reverse. I’d say it was after effects but back then I doubt they had access to that.
Edit* ok so I thought I’d Google this trick and come strolling back in here with a shit eating grin with clear evidence for my fellow monkeys on how this was done. Can’t find a goddamned thing. Welsh is just that dude apparently