On the Subject of Reverse Alpha-meta-cal Order

😍 👧 lrig em dna uoy 👶 ybab 3 2 1 ,c b a ,🎶im er od sa ✏ elpmis sa ,3️⃣2️⃣1️⃣ sa 🤓 ysae s’ti ,🔤

Across all instances of Reverse Alpha-meta-cal Order on the bomb, press the buttons in reverse alphabetical order.