Thunderstruck is pure neck tapping (hammer-ons and pull-offs), but done entirely with the left hand. Try using your index finger only on the B string. There are "pull-offs" between each note (ringing the open B). Slow down to nail it. Play with the music. It's pretty easy to think it is being played faster than it actually is. However, with a little practice, you can knock out some really fast *&$% this way.

Let's call pull-off "PO" - Hammer -on "HO"- on the B string

HO 4th fret, PO, HO 7th, repeat 8 times
HO 5, PO, HO 8, repeat 8T
next sequence begins at 12th fret and walks down - all HO's and PO's. You'll find it.........