How would I go about creating a Zelda clone?

[Kasperelo]

I'm just interested in how the collision between the world and the player is made. I have tried and failed many times at creating a Zelda clone or a Binding of Isaac clone. I have also tried using Bump.lua, but I just got problems with my bullets collision and I eventually gave up. Is there really a simple way to create a 2D top-down adventure game?

[Jasoco]

Bullets in Zelda?

Anyway, if you did it right in Bump, bullets should work fine with collisions. Actually a top-down game should be easier than a platformer. I actually kind of wish I'd decided to redo my top-down engine instead of the side-scroller I'm currently working on. Would save me a lot of trouble.