Here are the LMAO Castle codes I'm using. You can just paste them into your project64k cheat file (notepad) after you make a new entry under the existing super smash bros. rom section: Cheat#="Folder name\Cheat name",paste the whole code after the comma
80274007 0001,80273F37 0001,80273E67 0001,80273D97 0001,80273D30 00FF,802736F7 0000,802736D9 0002,802736ED 0003,81273ECC C525,81273F9C 4525,81273FA0 4514,81273ED0 4514,81273E00 4461,81273DFC 4000,80273D30 0075,80274581 0000,80274241 0000,8027458B 0000,8027424B 0000
Here's another version of it:
80274007 0001,80273F37 0001,80273E67 0001,80273D97 0001,80273D30 00FF,802736F7 0000,802736D9 0002,802736ED 00FF,81273ECC C4B0,81273F9C 44B0,81273FA0 4432,81273ED0 4432,81273E00 0000,81273DFC 4000,80273D30 0045,80274581 0000,80274241 0000,8027458B 4000,8027424B 0000
You can jump in and out from this area through the corners