Bathroom Curse

How to do the curse
Wait Until 11:00 PM, Go into a dark bathroom and lock yourself in, including all the windows. The Bathroom MUST have mirror, as this is his portal, Play or sing Can you feel the sunshine backwards or living in the city backwards in the bathroom, Try to sing along as you are playing it, After this, wait a few moments. If you leave, nothing will happen. If you are unlucky, Tails Doll will appear and offer you as a servant, if you say no, he will kill you. If you are lucky, you can get out in time, though this is rare.

Blood Gem Curse
The Blood Gem curse is basically what happens during the Bathroom Curse. If you play Can you feel the sunshine Acid Remix backwards at 11:00 PM, then you will see a small red dot, He does not want to kill you but it means he has special interest in you, if there is light shining on it, it could fade away but Tails Doll is watching you