The first 3 characters are DONE!! These are Wario, Waluigi, and Peach. Wario and Waluigi are pretty similar, they appear in front of you at random, turn off the light to get rid of them. When the light is off your stress will be raised. To lower it you have to look to the left and calm down. There is also a music box to the right you have to keep up. Waluigi is just more aggressive than Wario.

Peach works a bit differently, she will appear in the middle and you have to find her crown. Originally you would have to find it in time or you would die but it wouldn't work right so instead while she is there she will quickly raise your stress. Find her crown and your stress will stop going up and she will disappear. If your stress goes up to high for any of the characters you will die.