Ah I started it before I signed the NDA, so I can't work with anything like sf2dlib I'm pretty certain. I don't think anything that uses it is breaking the NDA, but I don't want to cause harm to it or the developers case it is. Writing in Lua with LP doesn't even remotely touch that stuff since it's just Lua that can technically be used on the PC version of Löve with very minor modification. tl;dr I don't want to be that asshole that ruins homebrew for the rest of you lol. I'll look into it more though, but for the record I'm a terrible programmerNah, spritesheets probably won't be a problem. I can extract them from the game, and should be able to get them from rawr.ws. (assuming the site isn't dead?) The real problem will be *using* them without cutting them up. /me has never actually worked with spritesheets before...
As for your NDA... If I understand correctly working on your project would probably also be covered under NDA if mine is. Also, remember that you worked on part of this long before I did, and given that the original author has fled the scene, you're closer to the creator than I am, I'm merely continuing what was started... That said, you do what you want. I'd love help, but if you feel like you shouldn't, that's your choice, and I'm fine with that.
Sprites... once I add those I should be able to make my collision more precice and less... rectangley... and less based on the top-left corner of frisk. I guess that'll also mean I'm rewriting more code that was left by lolzvid and not licenced.