8.3 is a fair score, and as I've not been able to play the game yet, I won't be able to question it. Once I get it... I'll be sure to let you know how much I agree or disagree with your assessment. Even though I doubt you care, Rol. 
Although, two-player co-op is unnecessary. I wouldn't be bothered if it was added, but I'm pretty sure Pikmin games are meant to be played as if you were all by yourself on a search in a distant planet. I think making you control each Captain individually adds to the complexity of the game in some sorts.







