Ok so I might be a little toasty right now but I found the COOLEST mini-game in the Den of Evil. If you focus camera mode in and don't use the map at all and put speakers on surround sound mode you can navigate the cave and locate monsters by sound. Stick to it, though, don't use the map. It's actually quite confusing to navigate and the cave design kind of tells you a story if you pay attention to the details. Like, the zombies were real people who were doing things in this cave.