rather than the first-person view) and sometimes even custom skins, models, and a script to turn them into films rather than speedrun videos. Metroid series Super Metroid (Nintendo, 1994) became popular among speedrunners due to the emergence of console emulators with demo-recording features. In normal Super Metroid gameplay, the player may find certain items such as "high-jump boots". Since the path through the map is non-linear, it is complicated to find the most efficient speed-running routes: areas with seemingly essential power-ups can be bypassed at the expense of improved mobility. This drove the discovery of sequence breaking, in which a player can acquire power-ups before the game design intends, allowing whole sections of the map to be skipped. Because the Metroid series rewards players for completing the game faster, groups of players were inspired to discuss techniques on message boards such as GameFAQs and to capture and post videos of full playthroughs. Despite internet limitations in the early 2000s, the ability to share video footage of Metroid runs allowed speedrunners to collaborate and learn from one another. It was during online discussions of Metroid Prime that the term "sequence breaking" was first widely used. Super Mario series Early platform games of the Super Mario series are popular in the speedrunning community. Super Mario Bros., Super Mario World, Yoshi's Island and Super Mario 64 are particularly notable for speedrunning accomplishments. Most notable speedruns of Super Mario games are generally carried out without tool-assistance, though speedrunners make frequent use of glitches, memory corruption, and arbitrary code execution (ACE) to make optimal times. Super Mario Bros. is a notoriously competitive game to speedrun, with the world record held by Niftski, who beat the game in 4:54.798, which is only 0.533 seconds or rather 32 frames shy of the theoretical humanly possible limit which is calculated to be 4:54.265. The speedrun includes multiple frame-perfect inputs in order to clip into walls, flagpoles and warp pipes. Super Mario World 2: Yoshi's Island is a game that players commonly speedrun at Awesome Games Done Quick. Charlie Hall of Polygon has described speedruns of Yoshi's Island as a "great introduction to the showmanship and the rich community" behind the Games Done Quick marathons. Through exchanging strategies and doing theory routing, the Yoshi's Island speedrunning community collaboratively work on pushing the completion time down. It is possible to speedrun Super Mario 64 in various ways. Though speedruns exist