It’s from the D20 Star Wars RPG, they weren’t the most accurate to the cannon even at the time. An interesting historical point is that the earlier West End Games star wars RPG fleshed out a lot of the expanded universe that we know and love and were used as reference material for the expanded universe novels.
They’re still making videos on YouTube at least once a year too! One of the two brother chaps who created it went on to work on the animated show Gravity Falls too.