Mr. Do's Castle

Mr. Do's Castle is a platform game released in arcades by Universal in September 1983. In Japan, the game is titled Mr. Do! versus Unicorns (ミスタードゥvsユニコーンズ). Marketed as a sequel to the original Mr. Do! released one year earlier, the game bears a far closer resemblance to Universal's Space Panic from 1980. It began as a game called Knights vs. Unicorns, but the U.S. division of Universal persuaded the Japanese arm to modify the graphics into a Mr. Do! game following the first game's popularity.