These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Step Mania
If you don't like these Your Mileage May Vary tropes, remember that this is StepMania! You don't have to stick with what's given!
Ironically, the only reason it was patched out was because it messes with scoring. The update immediately after the above adds a much easier to use variant that also plays nice with the scoring system.
This causes lots and lots of Suddenly Harmful Harmless Object. A wall of arrows or a set of holds might turn out to be mines - or alternatively, the mines you try to avoid turn out to be arrows, causing you to miss them. Trial-and-Error Gameplay follows.
This has since become an Ascended Glitch with support for Warps in StepMania 5.
Memetic Mutation: Anything from the Bemani community partially overlaps into Stepmania communities.
Most Annoying Sound: This whole game to people who aren't fortunate enough to know what the music sounds like behind your headphones. Rhythmic keytapping has been known to drive some people insane.