What always puzzled me: How exactly did she pull all the pins?
Maybe the uniform has a special function where she pulls a tab or hook connected to a wire that pulls the pins on all the grenade whenever she curtsies? It wouldn't be too much of a stretch to think Roberta would go the extra mile for theatrics.
What always puzzled me: How exactly did she pull all the pins?
It's pretty simple to assume but it can only work in anime for logic. She had all those M4s pins threaded into her petticoat and with a simple jossle she dropped all of them. Only way it can work in anime is that none of them were pulled preemptivly due to her acrobatics.
