I like how the beta sprites are improved but still in the Gen 1 style, so I made this:
Pokémon Red and Blue: Space World Edition
https://github.com/Rangi42/pokered/tree/spaceworldThe main change is that all 151 Pokémon use their new sprites. Also for convenience, you can hold B for Running Shoes (and for Mach Bike 4x speed), and text is fast by default.
I also plan to add shininess using Spaceworld's palettes, and maybe some of the beta trainer sprites. And *maybe* make all 151 available in one game (without inventing new maps or events). I'd appreciate feedback on anything else that would make sense to port from Spaceworld G/S to R/B.