So i downloaded SMW for an Emulator. I came to a swimming level and tried to press down while swimming and figured out that you go less up doing so. Can't seem to go forward while pressing down and swimming. Is this intended or is it my controller or emulator acting up?

Thanks for the help Ellesd

You should be able to move forward while pressing up/down while swimming. Sounds like an emulator issue to me, i know it's a thing some emulators do

Yeah i think it is an emulator problem

Using SNES9x should that do it? or can i fix it some how? right now I reasign some keys to my keyboard if i have to swim in a level :(

You should be able to set a diagonal gamepad (or keyboard) configuration in the emulator. It'll work when you do that.

What controller are you using? In the past when I tried using, for example, an Xbox controller (which has 8 directional inputs instead of 4), I could not diagonal properly at all. This is probably because the SNES expects 'right' and 'down' to be independently pressed but 8-directional d-pads sometimes do not accommodate this because they rely on their separate single diagonal input. If this is the case, I suggest getting a controller with a basic d-pad (such as iBuffalo or 8-BitDo.) You will find you have much better control in SMW and other snes games.

Using duel shock 3 controllor. Where do i set the diagonal gamepad?

It should be an option in your emulator's input settings if it's supported by your emulator.

Snes9x - Input > Input Configuration Zsnes - Config > Input (although I usually don't need to set the diagonals in this emulator) Bsnes/higan - Configuration > Input Bizhawk - Config > Controllers

Note that if I'm using my the keyboard on my laptop, I can only hold 3 keys active at a time. Just wanted to point that out if you don't get anywhere with configurating the inputs. :)