User blog comment:39Iceman/How to pause in M.U.G.E.N/@comment-5054628-20131223111724/@comment-3495717-20131230210614

Certain laptops need the function key (Fn) + Break/Pause to pause MUGEN, while others (like mine) just need Pause/Break. Whatever is written below/in blue on a key requires the function key.

Regular computer keyboards should have a Pause key.