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.
800$ BOOM (Both players get the same score on "Liquid Moon" in a tournament's final round, but one player accidentally hits a mine right at the end of the song. The "$800" refers to the difference in prize money.)
Scrappy Level: Utopia Expert. It's okay for the most part, until a third into the song the steps stop making sense for a while. See here
Also, Tell Expert. It's hated due to the fact it has nearly-impossible to hit jumps.
The first game has "Disconnected" for "PARANOiA", "I Think I Like That Sound" for "Drop Out", "Hand of Time" for "Healing Vision", and "Pandemonium" for "Gamelan de Couple".
The second has "Energizer" for "MAX 300", which even nicks the slow part of "neoMAX", a fan remix of "MAX 300". "Energizer" piles on the references to the MAX series especially thick. It's very likely named as it is due to "Energizer Max" batteries, it has a big jump followed by slow section in the middle (though it's longer and brighter than the slowdown in "The Legend of MAX" - the background video shows a freaking field of flowers), and the first sixteen steps of both the Medium and Hard charts are the same as the Medium chart from "The legend of MAX".