For the controls, here are the options:

• 1 single key mapped yo the keyboard SPACEBAR
• 4 keys mapped to the keyboard arrows (they can be used for anything you want, but map them to the arrows)
• A controller (preferably xbox)

I'd assume that's what they meant.
Up,Down,Left,Right+Spacebar. That's how it looks on the Header Image.

Hi,

It seems there's a confusion because of the way it's written.

In English it reads "Controls are optional" which can be understood as you can pick and mix.

However in Spanish it says " You have three options for control" understood as you can pick one and only one.

I hope they clarify soon.

Cheers