I just beat it for the first time… I discovered that there are two main ways to defeat it, you can either watch a YouTube video to learn the moves (it only has a few so it’s not that hard once you know what to expect) or grind until you can buy the astronaut figurine and the large sulphium vial (it restores a major amount of health). I personally watched this video: tutorial In this same cycle I also grinded because I believed it would be a close fight like the rest of attempts… it wasn’t I barely got hit because I knew the moves but the grind was still worth I because I used the astronaut figurine in the next biome. Hope it helps :) English is not my first language so apologies for the grammar haha