I'm too late, and it seems this one was beyond redemption anyways...
But I was going to post this:
Stop trying to eject it --you will likely wrinkle the tape further.
Make sure it's unplugged.
Take the cover off the VCR (usually a bunch of screws at the back and sides. You should be able to see the cassette shell, and the tape itself going around the capstans and the video drum.
Plug the VCR back in and then try ONCE to eject.
You should be able to see where the tape is hanging up --usually around one of the capstans. You can push the tape back in, and then unplug the VCR and unhook the tape from the hangup. Re-plug and then attempt to eject.
The tape will likely already be damaged, and some of it possibly hanging loosely outside the cassette:
To take up this slack you will have to raise the flip-up panel at the head of the cassette AND depress the reel-lock through a circular hole in the rear-center underside of the cassette.
The flip up panel can be raised by first depressing a small square-headed stud to it's right side, then lifting the panel up. With the flip up panel raised and the reel lock depresed (disengaged), you can turn one of the reels (I use my thumb, stuck into the white hollow of one of the reel hubs, visible from the underside of the cassette) to take up the slack.
If the tape is twisted, you may have to pull out more tape to find the twist point, and then reel it all back in flat onto the reels (again, while keeping the flip-up panel raised, and the reel-lock depressed).
hth
I'd post pics....but.
I do it by sitting while pinning an upright screwdriver between my knees to depress the reel lock. My right hand holdes the cassette AND depressed the filp-up panel's release stud with my index finger. The left hand lifts the flip up panel with the index finbger, while the rest of the left hand takes over holding the cassette.
Freed, the right hand does a 'thumbs-up' gesture. The thumb feels out the reel-hub under the cassette, and starts winding it --using the thumbnail as a screwdriver head of sorts.
Have fun
