I'm sorry, but I'm stuck at the start menu screen. No matter what button or mouse click I press, I cannot begin the game.

Edit: Thank you for your help.

I had to select the "Start" option with the (Left Arrow Button Key)
That is how I got it to work, that was the intention but I didn't understand that.

I'm giving you five because you helped me, as long as you're trying your best at improving as a creator then that is awesome, you are very awesome. Also, you're having fun creating, and you have a comfortable balance in life. That allows you to grow as you.

Make art you can be proud of. And I do think, you should be proud of your project.