I've seen video footage of it and it looks quite interesting. Does anyone know is a cart of it exists anywhere? Also I don't know if it's just me but the beta version of NSMB looks way more fun than the end product.
Here's a video it:
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also video of an earlier build
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Happy to chat to anyone! Also I'm learning Japanese so if you need a translation for something ask me and I'll do my best to make sense of it!