Cameroon will win this. Japan will pass the ball about quite nicely but will not be able to cope with the physicality of Cameroon. Plus, they're genuinely pretty bloody rubbish in front of goal.
That five minute delay is weird - you get the BBC text commentary describing events that are going to happen in two or three minutes time. To have full disorientation, I should listen to the radio so that what's happening in real time is described by text two minutes later and seen on the web three minutes later.