PLEASE if you are making a game, spend some time making controls re-assignable. "I can't walk and jump at the same time because default controls don't work for me and I can't change them" is a very bad feeling.
I, personally, can change layout of my keyboard. But
- It isn't easy
- I don't want to do it
- There are a lot of people who can't and to which your game can just become unplayable