"Glitchless" refers to a style of video game speedrunning where players complete a game without exploiting any glitches or unintended mechanics. This approach emphasizes skillful play and mastery of the game's mechanics, often requiring extensive practice and knowledge of optimal strategies. In the context of competitive gaming, glitchless runs are often categorized separately from glitch runs, which may use exploits to complete games faster. Popular games for glitchless speedrunning include titles like Super Mario 64 and The Legend of Zelda: Ocarina of Time, where players aim for the fastest completion times while adhering to the game's intended rules.