Some of them is hidden somewhere? Can't remembered 15 bosses in story mode.

Yeah, they were 15 bosses hidden in different paths. Star fox 64 is based in replayability (pretty much what I expect of Starfox:Zero), so there were 15 bosses in several areas.

I noticed in the Direct that one path to Andross takes 10 levels (I supose that the path they shown on the Direct is the complete path, though I'm not sure about that). So... they're like 3 more levels to get to Andross? (if the boss is Andross). I think it was seven levels to get to Venom in SF64. So there could be maybe 25 levels total (aproximating) which is okey for me. I can't wait to the Gamexplain analysis, they'll nail it as always xDDDD

I am so hyped!

Where are the rumors about development troubles and delays now? Lolz

So is this a reboot like Ratchet and Clank?

"Star Fox Zero can be purchased by itself from the Nintendo eShop for $49.99, while the packaged version comes with the Star Fox Guard game at a suggested retail price of $59.99."

Yep, the price reflects that. So there are two options, if you're not interested on Guard and want to play only Zero, digital and you'll save the 10 bucks. If not... well, I guess there's no other choice xDDDD. This is from the Starfox Zero official page by the way.

Anyone noticed PlatinumCo influence on the game? They didn't even mention P* during the direct.

A lot. Boss battles are totally Platinum games. I won't be surprised if they tell me that the boss battles were totally designed by them.

To be fair, nothing we've seen today disproves the rumours that there were development troubles.

Base for said statement? Unproven rumors. The delay didnt happen, therefore the base of verifiable truth to the rumor was disproven.

We are left with: speculation.