Absolutely filled with:
- Japanese culture
- historic, ethnic and religious significance
- ritual like you wouldn't believe
- folk throwing salt around like their drive has frozen over
- mysterious alter-ego of a famous ARRSEr...
However when you get right down to it ... Sumu is basically 2 fat blokes pushing each other about till one falls over or falls off the pavement. So next time you see two fat drunks in a shoving match outside the pub ... it could be a new martial art in the making!