[Matrixbeast]

Ultraman is pretty popular in the West. For a lot of non tokufans, Ultraman is about on par with Godzilla and Power Rangers. I know a fair bit of people a generation ahead of me that love the original Ultraman.
For more recent fans of Toku, Ultraman has dropped off due to his weaker presence in Western media. I think it's because more people getting into toku nowadays prefer henshin heroes at human size, so kaiju sized toku heroes are a bit harder of a sell, and with 40 years of backlog just from Sentai alone, it's harder to pull yourself to away from the big 2 of KR and Sentai. Hell, even Garo and Ryukendo were hard sells to some people despite most everyone loving them.