おやすみポラリスさよならパラレルワールド／ギラメタスでんぱスターズ（初回限定盤A）

I was surprised how clean the instrumental versions let me focus on the layered vocals in "Ψ発見伝！" — a nice bonus for a single. The live tracks from 2018 give it a solid concert energy that makes the whole thing feel like a complete package.

The live track of “まもなく、でんぱ組.incが離脱致します” captures that 2018 energy perfectly, and the instrumental versions let me hear every layer of the synths. The whole package feels like a time capsule for fans who were there.

The live recording of "まもなく、でんぱ組.incが離陸致します" from 2018 is a great bonus that captures the energy perfectly. The third track Ψ発見伝！ has a catchy melody that's been stuck in my head all week.