Here are some challenges that you can try to make the game better.
Challenge 1. Three Lives
Modify the game so that you have 3 lives. The game should only end when all 3 lives are used up.
Challenge 2. Different Gems
The media pack comes with a few different color gems. Make the gem color change randomly each time it falls from the top.
Challenge 3. Ship Selection
The media pack comes with a few different types of spaceships. Use
input to ask the user which spaceship they want, and let them play the game using the ship they chose.
Challenge 4. Multiple Gems
Right now, we only have one gem falling at a time. Modify the game to allow multiple gems to fall simultaneously.
Challenge 5. Multi-Player
Add in a second player and compete to see who can get the higher score!