Stepmania 3.95, OpenITG, and beyond allows Autopla圜PU to be accessed during normal gameplay (other versions are used for the attract mode demo only).Used when you want to see a stepchart without having to play it. Autoplay hits all arrows perfectly, but disqualifies you from making new records.
This includes the use of negative BP Ms or macros that utilizes mods during gameplay. While respected for making the game play different, some builds or computers won't be able to handle it, causing the game to crash instead. Older versions of Stepmania cannot handle rolls and can cause the game to crash.
People don't offset the music, meaning even if the chart is spot on, the every note will be off by some fraction of a beat.Fake Difficulty: Given this is open source and people can create simfiles, this is often unintentional.Then there's increasing the judgement level all the way up to Justice. Challenge Run: You can increase the rate at which the song is played, increasing the BPM and making it harder.
Boss in Mook Clothing: There are simfiles of popular songs out there from artists like Justin Bieber called dumps that have charts that don't make any sense and are made to be as difficult as possible.