Joint Firing Drill

You can get up to 140 coins, so definitely go for it if you can aim for it. Just clearing higher difficulties like stage 4 makes a big difference. Especially this time, there's a lot you can push through with momentum, so even if you don't usually play, give it a shot. If you're exchanging Joint Firing Drill coins for Divine Name Fragments, Tsukuyo is recommended. She's active in the Wakamo Hovercraft. You'll also see Eimi in the Tactical Showdown.