To use, backpack both sprites. (You will have to do some implementation, such as deciding what data it will send and how it will deal with received data. Don't worry, there are comments on stuff that you can change a bit without wrecking it.)
If you use this, please use with credit. Thank you :D Made in 1 day. WOOHOO, 400TH PROJECT, BABYYYY Tell me if you find any bugs, please Release log: 1.0: Shared engine. It supports basic connecting/disconnecting and data transfer.