How do I make a non-physics trajectory projectile?

I'm trying to make a weapon that's thrown at an arc, then falls to the ground. I tried using physics but I think it's making it much more complicated than it needs to be.

I want this projectile to be in a predictable, and unchangeable arc. Kind of like the thrown items in the original Castelvania, for example.

I experimented with sine behavior but I don;t understand it enough to figure it out on my own.

Bullet behaviour with gravity set - real easy. I made you an example:

Yes this is exactly what I was describing, thanks!