|This is an April Fools' Day version of Sound Blocks. Please don't take it seriously. You can find the original here.|
Sound Blocks were initially blocks that played sounds, but now are giant headsets that damage Scratch's headquarters and the area surrounding it with bass-boosted sounds.
Backstory and what they do
Originally, the purpose was to play sounds normally, but the blocks got deaf one day and morphed into giant headhones that made sounds that everyone within its boundaries could hear.
Why did they morph?
One day, the blocks attended an opera concert, but eventually, the singer's microphone malufunctioned and turned the volume to 100000000000000000%; thus, everyone attending turned into huge giant headphones that were evil.
The great LOUDNESS era
They steal energy units to make loud music, and one day, one of them increased to an insensible height and width of exactly infinity feet tall (I'm too lazy to turn it into metric units), causing everyone to hear a bass-boosted version of "Sweet Victory" twice.
Coffin Dance Error
One was asked to play a funeral song, but he spiced it up a bit by playing "Coffin Dance" to light up the mood, which caused everyone to dance while paying respects.