The Zashiki-Warashi side quest in Ghostwire: Tokyo will allow you tofind more Zashiki-Warashi throughout Tokyowhich all give you one Magatama for freeing them. Side quests like this that reward you with one Magatama each are all over Tokyo. Some of the yokai side quest examples are Rokuroku...
Tetsuya Yoshimura Yasuhiro Nakamura and Masataka Sugiura.3D direct manipulation interface: Development of the Zashiki-Warashi system.Computers and Graphics. 1994T. Yoshimura , Y. Nakamura and M. Sugiura "3D Direct manipulation interface: Development of the Zashiki-Warashi System", Computers and...