Code known as Base 10 in North America and Decode in Japan is a puzzle video game developed by Skip Ltd. and published by Nintendo for the Nintendo DSi's DSiWare digital distribution service. The game involves players lining up numbers so that they total up to 10. However as the numbers resemble those from an LCD display players can flip around numbers (for example a 2 can be reversed to become a 5) to complete their objective. The options featured include a sprint game involving 2 to 10 different digits a puzzle mode and an endless mode.