Ikemen-GO is an open-source reimplementation of the popular 2D fighting game engine MUGEN, which allows for extensive customization and character creation. Users highlight the ease of creating characters, albeit with some complexity, as well as the ability to enjoy multiplayer gaming through Ikemen. The community surrounding Ikemen is described as eccentric and dedicated, offering a wealth of resources for deepening understanding of fighting game mechanics. A notable improvement noted by users is the elimination of the custom SSZ scripting language from previous versions, making it more user-friendly and accessible for developers.