Macaroon, for the time being, the Witch's House and Mogeko Castle have moderate problems running on this version (1.22) of Neko RPG Player. It is advised that you should try playing other RPG XP games until another update comes out.

Also, make sure the game that you are trying to play is made on the engine RPG Maker XP. This app has the most compatibility for those type of games. Good luck!