That games magnet board was a junk design. Theres a company that offers a new board just buy that and be done (and reliable).
The ripper was also non functional when I got mine. The fuse was blown. It would work once and the fuse would blow. Bad transistor IIRC. However to be sure temporarily short the lugs on the coil. Does it fire? If it doesnt you need to replace the coil and likely the associated TIP transistor as well.