1.5 stars for the current product BUT I see you put some effort into this so as a fellow game developer, here are some suggestions to improve things:
- Make the controls use the arrow keys on the keyboard!!!!!!!!!!!!!!!!!!!!
- The cave is way too narrow at the beginning with randomly varying width. Give it a random walk in position but make the width get progressively smaller as time goes on, or make the speed of the cave scrolling increase with time.
- Insta death when you hit the wall is frustrating. Add a health bar and have each hit eat away at your health until you die. You can add to this by having health be a power up that can be picked up in the cave.
-Allow the ghost to move forwards and backwards, again with the arrow keys.