Rayman’s GBA port was… not good. I wonder how this one compares to it, sounds like a lot of effort went into it. Sure the screen is smaller, but if they adapted level design/sprite size well, that might work. GBA mostly tried to port the levels as-is, and ended up just removing some of them and having stuff hidden off-screen when it shouldn’t.

They’re also praising the soundtrack, and GBA’s take on the Rayman OST was absolutely atrocious, so I can only imagine they did a better job.