If Bayonetta 2 had sold across all three platforms it would've sold rather well. Problem is it didn't and thats no fault of Nintendos. I just knew it wouldn't profit exclusive to any platform let alone Nintendo's. The only hack n slash that can survive exclusivity is God of War.

While FPS/TPS games are dominating the sales charts, that doesn't change the fact that the original sold over 2M copies on the PS3/X360 (roughly 3X Bayo 2's current sales, which we shoudl expect to taper). My point (and I see where Ineed to clarify) is that I would expect it to have sold well across the 3 consoles, not only because of the orginal's sales figures, but also because I highly doubt that those buyers all migrated to WiiU from the PS3/X360. In all reality, I would assume that most of them chose PS4/X1 for the next gen, based upon sales figures and the investment that buying a console requires. For further reference, Bayo 2 on WiiU has outsold Wolfenstein AND The Evil Within on X1, despite have an install base that's 20% smaller.

No doubt it would've sold more, but I really doubt it would've sold any more than standard multiplats. 

Though I do think Bayo 2 will be profitable in the end for Platinum & Nintendo, considering they reused assets from the original and developing for one platform costs less. Even if it ends up not being profitable, I'm just glad this game exists. It's better to have a great sequel flop than not have a sequel at all, and I highly doubt that Nintendo expected huge amounts of sales, especially considering the install base right now.

Bolded for truth.

Why should we expect Bayo 2's sales to taper? The original had rather decent legs, and most of its sales came from the years following its release. Bayo 2 has a chance to continue selling given that: a.) It's published by Nintendo, b.) It's a highly acclaimed game, c.) It comes with the original game, and d.) If Nintendo/Platinum aren't satisfied with the sales, they will likely cut the price later on and that will increase sales as well. I think it will end up selling a respectable amount. 

Yes, it would've sold more if it was available on all three platforms, but that was never a possibility to begin with. Platinum wanted to make this game multiplat but nobody would publish except Nintendo, and obviously they're not gonna publish a game on PS4/XB1. Furthermore, Bayo 2 hasn't outsold those games on XB1 given that it's overtracked in the US. Plus, that's ignoring the PS4's massive sales in comparison.  

The Wii U base is pretty damn keen on Kart/Smash; look at their attach rate. Besides which, I'm fairly sure most Wii U owners are not single-console owners, so competition on other systems factors in as well.

As to GTA's demographics, try asking some boys aged 12-14 about it, odds are they've played it and love it. I'm not saying older demographics don't play it, of course they do. But it's 'fuck the rules' approach appeals very strongly to kids going through the rebellious phase of puberty and pre-puberty.

For my part, I played GTA III back when it first came out. I was 23. I found its gameplay to be a novelty, but running over pedestrians got old after awhile and I found the missions to be boring. I found its humor to be very puerile humor that would be more likely to appeal to kids than adults just because it had a lot of bad words and toilet language. Yes, it did have some political satire which I got but even that came off as rather juvenile. My teenage nephew liked it a lot better than I did, and he lost interest in it when he turned 18.

Explain to me how it is a problem...  To say that multiplats not being on wiiu is a problem is like saying that ios not being an open os is a problem because ios users don't get much of a choice in cellphone hardware.   It's something that's different about Nintendo consoles but I don't see how it's a huge problem. Humans are capable of making decisions like buying more than one console to fill their needs.

On what basis are you suggesting the game isn't going to end up being profitable?  Because lifetime I'm seeing it bring in about 60 to 90 million in revenue. And I feel like the game cost around 15 to 25 million to develop and market.

What are your calculations?   For example Halo 3 had a massive marketing and dev budget of about 60 million total.   I'm really scratching my head trying to figure out how bayo 2 doesn't provide profit especially with the middle man publisher being cut out.

I actually think we are in agreement, as I don't disagree with any of your points. I would expect sales to taper, because software sales traditionally taper after launch (just like the launch of any media). I also think it will sell well over time. To touch upon the multiplatform, your point about the PS4 having an even larger install base only further emphasizes the point. If the previously mentioned Wolfenstein and Evil sold less on a system with a larger install base, then it's not crazy to scale up the sales in accordance with the X1 install base. Then, the PS4 has an even larger install base, which tends to skew more towards eastern gaming, like Bayo 2. While pure conjecture, it seems very much to be the case that a multiplat release (not a possibility) would have done very well.