Regardless of the chosen class, the game presents you with certain 'waves' of enemies, beginning with few and gradually increasing depending on which side you flee, and the closer to zero, more icons will attack you. Personally, I'd rather play Kensai with just a mouse button acting and walking little screen.

Two reviews in portuguese:
Walter Machado's Interview: http://www.actionnerds.com.br/entrevista-walter-machado-apresenta-seu-game-ubermosh/

Gameplay review: http://www.actionnerds.com.br/review-ubermosh-e-a-vontade-de-nao-parar-nunca-mais/