Here is a guide on how to unlock the 4th power since so many people are having a pain unlocking it (Thanks ehendu for the guide):
Fourth Power: WARP MIND. The biggest pain in the ass as it has several components.
First Condition: Easiest to reach, you must have used the LUST power 5 times.
Second Condition: You need to get the mom to order sexy lingerie. This is accomplished by:
-Evening, mom tucks you in, TELEKINESIS (undoes bathrobe). Forget if the first time ends there or if you get prompted to use LUST right after before she leaves. -After the first time you've used both TELEKINESIS and LUST while she is tucking you in, get up at night and go to parent's bedroom. It'll ask if you want to watch your dad fuck mom or not. Chose your preference. Now you should be to proceed.
-Get Sleeping Pills from the bathroom if you don't have them (UNLOCK and TELEKINESIS the first time, just TELEKINESIS after first). Use them on the wine by parent's bed. If it's non-interactable at this point, good luck unbugging rip.
-After using sleeping pills on wine. Go get tucked in, TELEKINESIS and LUST mom again. Watch her at night. Do this 3 times, there will be slight changes in the event. After the third time, she should masturbate in bed and Nina should mention you should be able to give her ideas on the computer. -Afternoon, talk to dad in office so he leaves, computer, browser, leave. Mom comes in, she should choose to buy them.
-Wait 3 days.
-Go down to the foyer and see the package. Then return to your room.
You should now be able to get the Fourth Power: WARP MIND.