Oxikoverses were originally megaverses that had a certain defect during creation that caused them to produce highly acidic gas. If anyone goes inside of them, the acid will even melt their space suits, even the most high tech suits ever created in the omniverse can not withstand the acid. Entering an Oxikoverse means certain death. Their dimensionality is also reduced to 3D during the creation. Some people assume that this is somehow the reason that the acid is created.
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