Ok i just got this idea and it took me about 10 minutes to think and code all of it but its mostly a filler So to write a message just make sure that before you click the green flag used is equal to 0 if its not then press any of the sprites and it will become 0 then just restart project write the exact username and capital letters wont register once decoded to decode a message then make sure used is 1 when you press it it(it will automatically be that if you press go twice plz dont look inside plz dont look at others comments post codes and who its to in the comments enjoy