A woman poses next to French designer Gael Langevin's InMoov robot after he unveiled it at a technology fair in Bucharest, Romania, Friday, May 26, 2017. Based on an idea developed from a prosthetic hand Langevin made in 2011, the first-ever made on a 3D printer, the robot can be programmed to speak English, Spanish, French, Russian and Dutch, with a basic model costing about 1,500 euros, $1,665.

Piano Tiles 2 is a touch-based mobile game that's lots of fun, and also maddeningly difficult. A normal person probably plays for a few weeks, gets frustrated, and uninstalls it. Thankfully, YouTuber DenverFinn is not normal. For him, the obvious solution was to build a robot that slips over an iPad and acts like human hands, only better. An iPhone overhead films the game at 120 frames-per-second and sends visual input to a controller that knows to seek out the black keys and avoid the white spaces.