How big of a portal does one need to allow Ghasts to enter the Overworld?

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According to the Wiki in 1.7.2 a Ghast could enter the overworld
1.7.2 - Ghasts can now enter the Overworld in survival with bigger Nether portals.
just how big does a Nether Portal need to be to allow Ghasts to enter the Overworld?
Best Answer
5x5 should do the trick, at minimum.
If you can somehow manage to squeeze a Ghast into the portal the resualting effect shall send the Ghast to the Overworld. Even if the portal on the Overworld is smaller.
Spawn eggs were only used in the nether.
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How do I bring a ghast into the overworld?
If the nether portal in the Nether is big enough, ghasts can now travel through. Nether portals can now be activated by any fire block within the frame.Can Ghasts come through Nether portals?
they can't spawn in overworld, but they can get to overworld through portals if you built it 4x4 or bigger!!! ..Can ghast spawn in the overworld?
Apparently you can lead ghasts. It can be seen on Docm77 youtube's channel.How to Bring a Ghast Back to the Overworld 1.17 +
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