Even the most diehard Sonic The Hedgehog fan could be forgiven for missing out on playing Waku Waku Sonic Patrol Car. The 1991 arcade game was released exclusively in Japan for small kids, placed within a car-shaped cabinet that was big enough for junior and their adult minder. Thankfully, the title, which had been thought lost for the better part of two decades, has now been found. If you're prepared to wait a little longer, then the game will be available on the MAME arcade emulator along a forthcoming software update.