Unfortunately I can't get the game to run due to no joysticks, but I spotted one thing that looks supsicious in your load function: bullet = bullet:new(100, -200, 0, 300); table.insert(bullets, bullet) You're making a variable that has the same name as your library here, and then you're setting a re...

Usually entities are stored in a table, so to get rid of it you find its key in that table and then set that value to NIL.

Of course, the harder part is to make sure that any other references to it are also dropped, but that depends a bit on how your game is designed, I think.

Honestly it sounds like the worst combination of a game and a story you can have; people who love stories won't be able to complete unless they're good enough gamers and people who like good games will constantly be forced to wait through long story parts, when they're just looking for some play. Yo...

For larger projects, dropping it here is probably a good idea

Using the Löve2D wiki is nothing to be ashamed of, I'm pretty sure that (correct me if I'm wrong) it's safe to say that everyone uses the wiki because if it didn't exist when I wouldn't have gotten into programming at all. I do programming for a living, and StackOverflow and the documentation for t...

Yeah, there are two basic ways. The simple one is to turn the hitbox into a sensor: http://leafo.net/love/wiki/fixture_setsensor1.html This will make the hitbox not resolve collisions but it will still trigger callbacks (ie; you can detect when it hits and stops hitting something, but it won't push ...

This sounds to me like it's in the category of "If you have to ask, you don't understand well enough to make it work".

It's going to be a huge undertaking for probably no gain and loads of really weird bugs.

love should be a global that's everywhere, unless your other file is either outside of love (ie; you're calling it through your own Lua interpreter) or if it's running inside a thread or channel, which by default don't load any love modules. But yeah; include a .love and we'll be able to say more. (...

Add this in your creation function, after you make the fixture. coin.fixture.setUserData( coin ) It will store a reference to the coin inside the fixture. Now, when you resolve the collision, you should be able to get to the fixture, and then you can recover the coin by doing this: fixture.getUserDa...

Try this:
That should work.

(Sidenote: your main.lua should be in the main folder, this setup isn't going to work when you try to distribute the game)
(Unless they're two different projects)