Nintendo tumbler puzzle Nintendo tumbler puzzle The Nintendo tumbler puzzle, also known as the "Ten Billion Barrel" in English and originally in Japanese, is a mathematical puzzle in the style of Rubik's Cube. It was invented by Gunpei Yokoi of Nintendo in 1980 and was covered by (until the patent expired in March 1995 due to non-payment of a maintenance fee). It consists of a "cylinder" of transparent plastic divided into six levels, together with a black plastic "frame". The frame consists of upper and lower discs that are joined together through the middle of the cylinder. The top and bottom levels of
Professor Layton and the Last Specter prevented the game from being released before the end of 2011. Every puzzle in "Last Specter" was created by Akira Tago, a Japanese professor and author of the Atama no Taisō series of puzzle books, which has sold more than 12 million copies within Japan. The game was produced by Level-5 CEO Akihiro Hino, and designed around the concept of , detailing how Professor Layton met his apprentice, Luke. The "Professor Layton" series was envisioned as a trilogy, to be completed with the release of the third game, "Professor Layton and the Unwound Future". In spite of this, Hino said