There are many visuals that can have different variations. For instance, on the visual Terra, sometimes the wave is going up and sometimes down. It just randomly picks one or the other when you choose that visual. Pressing Select Mode will also randomly rechoose one of the two. I find the randomness to be annoying. Sometimes I'll have to push Select Mode half a dozen times to get the setting I want. Perhaps it could stay on the same setting until Select Mode is pressed, where it will rotate through the different settings. And it would say:

Visual: Terra - up
Visual: Terra - down

...or something similar. And you could also have an extra setting for when you want it to choose a random setting:

Visual: Terra - random


Just a thought.