Triangular_rock ay yi yi. You have a lot to learn. First of all, its not called manic. Its called mana. Its those blue stars in your screen. And the reason that the nurse can get to the house, is that once you go somewhere else for a second, they automanically teleport there. You dont see them do it, but they do. Its how Terraria works. Now. About the mana AKA, the blue stars. Some weapons use the mana and need the mana to use the weapon. After a short while, the mana refills itself. Im sure you have seen fallen stars before. You use the fallen stars to craft the mana. I think it is 5 fallen stars make a mana star. Trust me, these mana stars will change how you play the game so make sure to get a lot of them. Once you have them, use them like life crystals and you will get one more star for each one you put out. However there is a maximum amount you can have, so dont go past the barrier. Speaking of the water hose, you need a weapon that does good damage. I forgot to recommend the bee's knees. Its a REALLY good weapon that does after damage, and drops from the queen bee. One thing to suggest is to put a summon weapon to take on the wall of flesh, and to make sure you have some platforms down. Make sure to break the walls of the hell houses, because if the wall of flesh touches you, it will do a TON of damage. You can do water hose if you really want, but if you are in hardcore, be really careful. Make sure you have taken down the King Slime, Eater of the worlds, and the Eye of Cthulhu. Maybe the queen bee, but thats up to you which boss you want over each other. But, I recommend that you defeat queen bee first for the bees knees and the hornets summon weapon. I also will say, please do not purify the Corruption, or break the demon alters yet. You can actually use them to be more powerful in the game.