Okay, the user wants me to translate "disco ball" into Japanese. Let me think. The term "disco ball" refers to that shiny, reflective ball used in discos to create a sparkling effect. In Japanese, the direct translation would be ディスコボール. But I should check if there's a more common term. Sometimes, loanwords are used as is, but in this case, I think ディスコボール is the standard term. I don't recall any alternative Japanese term for it. Also, the user specified to translate into Japanese, so even if it's a loanword, it's acceptable. No need to change anything. Just output ディスコボール.