Well, your project allows to move one player with the arrow keys.
Is that the sequence you are willing to save ? What keys are pressed, in what timing, and apply those to the other player as well ?
I'm sorry, but in the end it is very vague what you are exactly attempting to do in regards to what you currently have implemented.
Provide as precise details as you can about what you are looking to do, what you experience your current project doing and how it differs from what you are willing to do.