Well, I just want to say, that I managed to unlock the crystal ship on my second Rock Curiser run, so i don't know what you are all complaining about.
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jk, I realise that this is the hardest part of the game, and I was INCREDIBLY luckly to get it.
I wasn't even trying to unlock the ship, I only had just got the Rock Curiser.
And if I didn't find this ship, I wouldn't spend endless runs trying to find it, I have better things to do with my time.
Good luck to everybody out there who is trying to find this ship, you will need it
The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us.
Bill Watterson