heeeeeeeelp anyone seen this

I would try removing the starter and metal gasket that goes between the trans and engine. Then unbolt all the flexplate to torque converter bolts that are left. Then turn the engine over til the flexplate is out of the way. Then try putting a nut over top of the broken bolt and weld the inside of the nut to the broken bolt, and try turning it out by the nut.
If I am not overlooking something here, it should work.