You are Scratch Cat. You start in the Blackworld and have to defeat the Guardian Horse to open the portal to Ghostland. Click the Guardian Horse to hurt him. Once you defeat the Guardian Horse, you can move with the arrow keys to the portal to Ghostland. Be careful, because once you enter Ghostland, you can't return to Blackland! Once you are in Ghostland, you will hear the annoying sounds of the ghost in Ghostland. That has been annoying the residents of Ghostland for centuries, and to stop it, you have to defeat the ghost. Click the ghost to harm it. And make sure not to lose your nine lives, or you lose!
The Sounds of Ghostland was created a long time ago but I didn't know what to do with it, so I abandoned it. I decided to make this my first interdimensional/multistep game.