Li'l Arnie

The Li'l Arnie (also known as the Renegade in Keeper language) is a tactical Wonder Weapon that appears in the Zombies maps Shadows of Evil and Revelations in Call of Duty: Black Ops III. It resembles a glass jar with a small squid-like creature inside. When thrown, the squid-like creature will grow substantially and will attract any nearby zombie, Insanity Elemental, and Parasite, killing them instantly with its tentacles (except for Margwas).

Upgrading Li'l Arnie
The requirements for upgrading Li'l Arnie is that all the rituals have to be completed. Next, the player carrying Li'l Arnie needs to kill 100 zombies with it. Then, the player needs to go to three of the ritual buildings (Nero's Lair, the Boxing Gym, and the Ruby Rabbit) and throw Li'l Arnie at three specific items (a top hat in Nero's Lair, a bow tie in the Boxing Gym, and a cane in the Ruby Rabbit) to make them disappear. When that is done, the player must go to the Black Lace Burlesque and throw Li'l Arnie at the ritual stand on the stage. When this is done, the small squid-like creature will appear on the table dancing to an instrumental version of Snakeskin Boots whilst wearing the three items with four Gateworms appearing above it, acting as its backup dancers. Once the song finishes, they all disappear in a purple cloud, and Li'l Arnie is now upgraded. Its upgraded self acts pretty much the same as the original one except it kills enemies faster and has purple liquid surrounding it instead of the original green. Its duration is also increased and takes more hits from the Margwas before being dispatched.