Use left and right (Or a and d) to change the launch angle. Use up and down (or w and s) to change the launch speed. Note: If a banana is unreachable, press the green flag again. Also, if you hold the space bar, your final score will go up way more than your real score.
I got the code and ideas from the book "Coding Games In Scratch". Thanks to them I was able to make this game. This book is 99% of my code.