You said "sorry i couldn't make it good" it's a nice game, but I had a problem. There were a few times where right when I pressed "Play" I went flying into the line.
Why don't you make a score table where it says other players' ranks and scores instead of just my own high score.
You can look at my scores class: http://www.greenfoot.org/scenarios/19309
I'm working on making it normal speed, now it's extremely slow. With my Scores class all the users are displayed with their image, rank, score, and name not just the top few users.
2017/6/19
2017/6/19
2017/6/19