Im a new player an im trying to finish the missions to get green ram. My final mission is the beat Petalgeuse 3 times. Any tips for beating him. Do i just need to grind my characters for a couple days?
You can run the Normal stage with friends or AI to complete the mission easily. Note that using any Re:ZERO character gives you a huge damage advantage, so make sure to use if you already have one. Also, heroes with Amplify and Lifesteal effects are highly recommended. Let me know if you've managed to clear this mission :)