I also found that if you are making an action game that demands a constant concentration of the player, like FlappyBirdClones do, it is better to have some boring and repeptitive background. I know that your is repetitiv, but not boring enough to just fill the screen and not to compete for the attention. Congrats on the finished project!!! That is a huge milestone in anyone's game dev journey! Cheers! I wanted to reply to you on Facebook, yet your post was eaten by the evil robot, and I couldn't find it.
And you need to upload the whole folder, not just the .exe file. The game does not work this way.
