Board Thread:R2D - General Discussion/@comment-26194722-20150320005646

When you equip the katana, a bar shows up near the bottom of the screen. Whenever you kill a zombie the bar fills upa bit. When its full you have the option to make it have a temparery lightning effect (press T or L). The lightning katana thing should 1-2 shot kill zombies. If it doesnt kill them they'll be paralyzed. It should last for 1-2 minutes.

Inspired by Naruto 