Microcontrollers are not computers — except they kind of are. They have processors, memory, and some form of storage. Though there are some limitations and a lot of architectural differences, microcontrollers can act as computers. But because they have a lot less power under the hood than modern computers, they can usually only mimic older computers and video game consoles. That was, however, enough for Scott Porter (AKA Smashcat) to create their own game engine for the Arduino Uno that can run ...