UML Inc. is a video game company whose mascot is Ultra Mario. They have made many games. It was found by Ultramariologan (t∣b∣c) on December 6, 2010 and has not been ended yet. UML Inc. also makes stories (such as Mario vs. Sonic). They are currently working on the Mario vs. Sonic series. They only have 2 stories so far. Super Mario Bros. Z Kai is one of them.