The Wunderwaffe DG-2 is a weapon introduced in Shi No Numa and featured again in Der Riese. It is powered by Element 115 and shoots bolts of electricity. It is always a one-hit kill, and can kill up to 10 zombies at once.
After being Pack-a-Punched, it becomes the Wunderwaffe DG-3 JZ. This gives a magazine size of 6 rather than 3. The Wunderwaffe DG-3 JZ also has 30 spare rounds rather than 24.