I'm a bit stupid, but how do I get to the mummy room the guide mentions? I swear I've gone through ever door in the mansion in this game, tried jumping, dashing, using the hammer to get to places, but I cannot for the life of me find that mummy room. I'm currently revisiting version A1.20 and B1.05. I've also tried looking online for guides or even in the threads here, but I just cannot find anyone talking about the mummy room. Probably a skill issue on my end, but still, help would be appreciated, thank you.