Why is the manga mostly black and white?
You must be new to manga if you’re asking this question. This has more to do with the standard practice in the Japanese comics industry than Urusei Yatsura specifically. In Japan most widely circulated comic series are produced at a rate of one chapter per week, which is far more demanding than the monthly schedule of American comics. Given that colouring is one of the more time-consuming aspects of doing a comic, Japanese comics tend to omit colouring so that each comic can meet its weekly deadline. For this reason, comics like Urusei Yatsura are drawn with a very stark blackline style using solid blacks, crosshatching and patterns. The series did sometimes have a colour pages done in watercolours (Rumiko Takahashi’s colouring method of choice), but these are mostly done as an occasional bonus for readers of the original weekly run. The tankoban (trade paperbacks) reproduced these in black and white. Comics done completley in colour do exist in Japan, but they tend to be more expensiv
