I'm just wondering... Both the image editor (Gimp) and the engine (UE4) support rectangular tiles...

But, is it authentic? Could any older hardware use non-square tiles? I'm shooting for a GBA style game, but I wanted to know if there were any games that did this?

In terms of specifications, I want to use 16x32 tiles (32 wide)... This is because I'm using a perspective that's a cross between top down and sidescroll. The game will play primarily like a top-down, however.

Thanks!