What does EMBU mean in Tekken?

An embu is the opening movie that demonstrates the characters and their moves.

but what does the letters mean?

Embu is a town located approximately 120 kilometres (75 mi) northeast of Nairobi towards Mount Kenya

email from reply from namco bandai:

''Hi there,

Unfortunately I don’t have the exact definition but it’s basically a movie that demonstrates all the characters and their moves.

Namco Bandai

JOe''