Rotozoa is a puzzle video game published by Nintendo for the Wii video game console. The game revolves around a colour-matching concept, with a mechanic similar to that of Snake, taking place within a diffuse world of micro-organisms. Developed by skip Ltd., the game is the fifth WiiWare installment in the Art Style series. It was initially released in Europe on May 28, 2010, under the alternative title Penta Tentacles, and followed in North America on June 21, 2010. It was eventually also released in Japan on October 18, 2011, preserving the launch title of the PAL release.