X for the roller, z for brush. I can make one with different colors if you want. Space for splattershot, c for bomb. By the way: it is very hard. The idea for Splatoon was made by Nintendo and I did not create the idea. Please don't sue me.
Got all of the costumes from: https://www.google.com/search?q=inkling+sprite+spreadsheet&client=safari&rls=en&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiWifOw0NzfAhVG2FkKHXbRCk0Q_AUIDigB&biw=1209&bih=646#imgrc=5lCpv3Y6zGj0vM:
