Is this true?

It takes playing through the game three times in order to gain:

1) 100.0% completion in one go (which requires, amongst others, stopping Garik in Ch. 3, as well as finishing all Moonflow Missions and talkint to Tobli in Ch. 1)

2) Enterprise (which requires not talking to Tobli, which is in direct conflict with 1) above).

3) Key to Success (which required not stopping Garik, also in direct conflict with 1) above).

Or can you gain both Enterprise and Key to Success in one and the same game?

How does the Minerva's Plate into this one?

quote Weapon

It should only take 2 times if you want the Key to Success. To get 100% can only tkae one time through. To get Key to Success you need to choose between either getting 100% or the item first time through. I would choose the item first time through because for the basic reason that you probably won't get 100% the first time through anyway.

Well, I got 100.0% first time through. So, no Key to Success.

Now, I know it takes (at least!) two tries to get both 100.0% and the Key to Success.

However, that was not the question. Now that I have 100.0%, can I get both the Key to Success and the Enterprise (and the Minerva's Plate)?

To get Enterprise, I must not speak with Tobli in Moonflow in Ch. 1, right? (So I can push him into the elevator in Ch. 2.) And to get the Key to Success, I must get all the Moonflow Missions (including the "Shave the Hypello" in Ch. 1), right? So, can you finish "Shave the Hypello",while not talking to Tobli, thereby getting both the Key to Success and the Enterprise?

i thought you got the key to succes if you didnt do the shave the hypello mission at all and the enterprise if you didnt talk to tobli and pushed him in the lift

yeah you do have to do the hypello mission., if that is right