It's been a while since I last played Lumines. You have to form groups of colours, right? I think there's too little contrast between the two colours, and I imagine it would be even worse on a real Game Boy. Still, sweet mockup :)

I wish I could have made some trippy background like the psp version but I couldnt figure out how to do it without messing with the global visibility

... It'd be chiptune heaven <3 I think the looping would work very well.

lovely mockup!