Critical failure roll, you cross the streams.
In the wake of my posting about the GB-style d20 game system, some gently, slightly condescendingly, but ultimately pointlessly reminded me that there was already a GB RPG. Yes, but this is new, and not everyone wants to track down a copy of the old game.
However, they did rightly illustrate that I probably should have pushed my old RPG features more, especially now that I updated part one (part two, due before the end of the world) with old, rescued online materials to help a person set up their own classic GB RPG game.
Also, James N. spotted a situation appropriate episode of Full Frontal Nerdity. Thanks, mate! Ace!