Jumpman
Jumpman is a platform game written by Randy Glover and released by Epyx in 1983. Originally developed for the Atari 8-bit family, versions were also released for the Commodore 64, Apple II, IBM PC, and ColecoVision.
"Jumpman" was Mario's original name in the 1981 arcade game Donkey Kong, which featured several elements that appear in Jumpman. Randy Glover has stated that Donkey Kong was the original inspiration for Jumpman.