GameXplain prepared an extensive analysis video of Super Smash Bros. Ultimate Stage Builder that is introduced in version 3.0.
Video credtis; GameXplain
Stage Builder Tips
How does the stage builder work in Super Smash Bros. Ultimate’s 3.0 update? We take a look at what secrets might be hiding in the reveal trailer, including some Easter eggs that exist as part of the the trailer itself!
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Video credits; Jasonator