itch.io

So I've been playing this game in my freetime, and I've NEVER encountered this. But I was trying to do a run, and I'd just killed the first boss and he dropped this yellow black hole and I was taken to this world where every room was loot, and I had like six hearts! I dont know if that's something that's not supposed to happen, or if its just really rare, but I've never gotten it to happen again.