How to evade all enemies
Hanako: Hanako doesn't really move, but she’ll hide in certain hiding spots, rendering them useless. However, portable hiding spots are fine.
Angel Statue: If she appears, watch her until she leaves. Don’t get too close, though.
Kuchisake-onna: Run and hide. Stay out of view before you hide, otherwise she’ll open your hide spot.
Painting Girl: Just a roadblock. Try to find a way around her.
Shadow Girl: She’s not fully visible, but you can still avoid her by running and hiding.
Traffic Lady: She’ll force you to play red-light, green-light. When the light is red, stay still. Don’t move into another room or move. This also affects enemies, interestingly. When the light is green, resume moving.
Mary: (She appears as text on the screen until she attacks you): Mary teleports around the building a total of three times per round. The first two are random, but the third will be the room you’re in. On round 3, stay by a door and leave immediately until she leaves.
Jiang-Shi: She’s a quick chaser who can sniff you out. Use a sealing talisman to disable her for the rest of the hour.
Piano Girl: If you hear piano, go between floors until you find the one that’s loudest. Then, go between each door until you find her and sabotage her.
Hasshaku-sama: Listen when she’s coming. Keep yourself on the move and hide if you’re out of her line of sight. Hope she doesn’t linger too long, otherwise her charming aura will cause you to come out of your hiding spot and approach her.
Each item and its function
Health Recover: Recovers one health slot. Only hold onto one or two if you already have full health. Otherwise, use on finding.
Battery: Restores your flashlight battery. Use as necessary, they’re fairly common.
Clock: Briefly stop time. You can use this to escape normally impossible situations. However, you can’t interact with items.
Water: Restores your stamina. Useful in certain situations, but don’t hoard.
Box: Allows you to hide anywhere. Useful if you are escaping one of the girls that can't chase you out of a hidden spot. Also Hanako can't attack you for hiding in them. But keep in mind that if a girl sees you before activating the box, she'll just pull you out of your hiding spot.
Talisman: Stops the Jiang-Shi. Use it when she’s close.
Each enemy’s H-Scenes
Hanako: Masturbates you with her panties before game, gives you a blowjob in ‘stay’ ending, has (possibly anal) sex with you in hiding spot.
Angel Statue: Pins you down and has sex with you.
Kuchisake-onna: Has sex with you.
Painting Girl: Gives you a blowjob.
Shadow Girl: Drags you into a shadow realm and has sex with you.
Traffic Lady: Gives you a handjob.
Mary: Ties you up with her strings and has sex with you.
Jiang-Shi: Has sex with you.
Piano Girl: Has anal sex with you.
Hasshaku-sama: Gives you a titjob.