Mouse or computer keyboard was used to control the mini-synthesizer's keys and knobs and fiddle with oscillators and envelopes. Synthesizer doodle patched the keyboard into a 4-track tape recorder that could share songs. On June 23, 2012, in commemoration of what would have been Alan Turing's 100th birthday, Google's logo became an interactive Turing Machine. On August 8, 2012, Google Displayed an interactive Basketball Game for the 2012 Summer Olympics. On September 13, 2012, Google created a doodle for Clara Schumann to celebrate her 193rd birthday. On November 23, 2013, Google's logo changed to a playable Doctor Who game in honor of the show's 50th anniversary. On May 19, 2014, for the 40th anniversary of the Rubik's Cube, Google made an interactive virtual Rubik's Cube that people could try to solve. On April 14, 2015, for the 155th anniversary of the Pony Express, Google made a playable 2D side-scrolling doodle game in which the player collects mail, avoids obstacles, and delivers up to 100 letters from California to Missouri. On December 17, 2015, a Google Doodle was featured honoring the 245th anniversary of Beethoven's baptism. It features an interactive game to match the musical writing in correct order as it featured 4 levels. On January 22, 2016, for the 151st birthday of Wilbur Scoville, creator of the Scoville Scale, Google made a playable doodle game in which the player plays as an ice cream cone throwing ice cream scoops at a variety of peppers to neutralize their heat. Gameplay is based on the timing of a mouse click or space bar press which rapidly increases in difficulty. The game features 5 levels, each featuring a different type of pepper (Bell Pepper, Jalapeño Pepper, Cayenne Pepper, Ghost Pepper, and Trinidad Moruga scorpion) and a fun fact about each pepper along with its measured Scoville Heat Units. On August 5, 2016, for the 2016 Summer Olympics, the Google app received an update for Android and iOS devices to include 7 mini games called "Doodle Fruit Games" featuring Strawberry, Blueberry, Coconut, Pineapple, and more. It lasted until August 21, with a new mini game every day. The game was accessible on the Google app by clicking on a play button. On October 30, 2016, for Halloween, Google added a game called Magic Cat Academy, featuring a cat named Momo fighting ghosts. To play, users had to click on a play button, and users