Mario Calculator

Mario Calculator is a DSiWare calculator application released in Japan on February 25, in North America on June 15, and in Europe and Australia on July 3, 2009 for 200 DSi Points and can also be downloaded on the Nintendo 3DS' eShop for $1.99 (USD). It has a memory key and can display up to 13 digits. It also has a unit converter where the player can convert length, area, weight, speed, volume, temperature, time, and age. It is one of the Mario applications downloadable from DSiWare, as well as Mario Clock.

American English
''Mario and Luigi™ take a break from their normal adventures to dedicate their heroic talents to working with numbers. Mario Calculator features the full functionality of a traditional calculator, including a Memory key and the ability to display up to 13 digits, and adds a layer of atmosphere reminiscent of the original Super Mario Bros.™ Use the Unit Converter to turn one unit of measure into another (such as length, weight, volume, age and others), or track the history of calculations you've performed with ease. Listen to the Mario-related sounds and watch the coins fly as calculations are performed. Now, back to adding up those high scores...''

British English
''Make maths more fun with this Mario-themed calculator! Simply use the Touch Screen to enter figures and make calculations, accompanied by classic Super Mario Bros. visuals and sounds.''

''In addition to a fully-featured calculator, Mario Calculator also includes a unit converter for converting to and from a variety of different measurements such as weight, length, speed, temperature and more. You can even convert human years to and from animal years!''

Staff

 * Mike Cimprich
 * Tsuyoshi Watanabe
 * Katsuhiko Kanno
 * Michael Harrington
 * Shigeki Yamashiro

Easter eggs

 * On the calculator, if the summary's resulting digits are sequential by moving up or down in value by 1 (Example: 123456789 or 987654321), the classic "Flagpole" sound effect with the "End Level" music from Super Mario Bros. will play and a Toad will appear, accompanied with fireworks. Depending on how many digits the summary has, the number of fireworks will change. (Example: 9 digits equals 9 fireworks).
 * If the summary equals a repeated number greater than 100 (e.g. 111, 222, 4444), Mario will jump repeatedly under the coin block, and the 1-Up sound effect will play. The number of jumps equals the repeated digit (e.g. 77777 will make Mario jump 7 times).
 * Also, if the summary equals the player's birthday (Example: August 4th (08-04) would be "804"), a text saying "Your Birthday" will be displayed and the "Flagpole" sound effect as well the "End Castle" music will play. Princess Toadstool will appear and three or four fireworks will explode.