User blog comment:Morning Star TM/Sonic the Hedgehog - The power potency of the top tier characters/@comment-7424710-20200104143720

次元 is a direct translation for dimension.

超 has multiple meanings, however, the general purpose of the word is for extremities.

It isn't wise to use it to mean that it's a higher super/hyper/ultra-dimensional being, rather it's saying that it is an otherworldy dimensional creature.