Wii Play Tanks Remake

So I had to create something in Greenfoot for our computer science class in school and came up with this. Most of the assets are from the original game. Special thanks to Danpost, even though I never asked a specific question on this forum how something works, it seems almost all of the threads here are answered by him and I surely got most information that I needed from him. The game is still in development as there are only a few levels atm, expect more levels and types of enemies in the future!

Controls:
Use the mouse to aim and to turn your tank.
Use SPACE to shoot (one bullet per button press) and use W to drive towards the mouse.