Thank you so much for your through review! I'm really thankful you took the time to play my game and give me such a detailed review! I'll fix these bugs when I have some time. And sorry about the qwerty/azerty issue, I didn't even think of that... I'll look into the script call you mentioned, to let people reassign their own keys!
Once again, thank you for your time! And if it's alright with you, can I mention you on the credits of the game?