Aeria likes to put a "Unique" feature in each of their games, for Shaiya it's the difficulty levels, for DOMO it's the relationships.

And ~Master Yoda~ you can use the w,a,s,d keys to move, it even tells you that when you start the game/on the site.

Quote Originally Posted by Shaiya site
Option 2: Shaiya also supports ‘W’ ‘A’ ‘S’ ‘D’ movement as well.