If you asked 80s arcade fans what they would consider cool and exciting, "ostrich jousting" probably wouldn't have been at the top of the list – but that didn't stop Williams from hatching a hit with Joust in 1982. Oddball game ideas were Williams' trademark, and Joust was no different – it pits two bird-riding knights against similar opponents in aerial combat, with floating platforms providing an additional level of strategy and complexity. A pterrifying pterodactyl also stalks complacent jousters who stand still too long, which was itself the subject of a minor controversy when gamers discovered an exploit to endlessly kill the pterodactyl, requiring a fix from Williams. Joust was an 80s hit that remains popular, due to its combination of simple, elegant gameplay and consistent challenge.