thank you for your comment! I am indeed left handed, but I also have a French keyboard, so when making games / character controls, I am more aware of people using different keyboards… with arrows, no problem for anyone! With more time, I’d include a settings menu to allow peoplpe to customize their inputs.
for the score submitting and leaderboards, it is supposed to work on gd.games (the game is made with GDevelop and hosted on gd.games), but lack of time, I did not tested it out completely.