Splatoon is really strange because, in a vacuum, these three games make up what is probably Nintendo's most flatly iterative series. The aesthetic, the design sensibilities, the story, the structure, from top to bottom it's the same; you get some new single-player levels, some new multi-player maps, some new weapons, maybe a new game mode if you're lucky (it's a card game in this one). It makes sense why someone might be disappointed by this, especially considering how novel the first game seemed on release. It may be more of the same, but I think it's a winning formula. 7 years later I still find this both visually and mechanically more interesting than a lot of other big shooters on the market.