I think it would be interesting to look at. I like the way the physics are used and it's just a really innovative approach. If you're willing, I would sincerely appreciate it. :)

The three balls do: ♦ Blue = Bounce ♦ Red = Teleport to opposite side ♦ Yellow = Randomly start at a new edge

Okay, looking back at this scenario because it seems to be the closest to what I'm trying to achieve. How do I edit each "world" so that when you walk into a different "room" there is something to do? I'm still confused about that piece.

It's feeling very fluid and very natural. It almost needs a "Pssshhht!" sound when you move so it sounds like a thrust. :) A little guy with a jetpack or something. And, of course, bad guys / obstacles. :)

I don't know if the code for the Counter is simplified the way I did it -- but I understand the way it works now. :) Basically I have each item (i.e. the Tanks) keeping track of their score. Then I have a "Scores" Class run a "getScores" method from the tanks and gather up the scores. Then I display the scores on the screen. In the end [when someone wins] I clear off all of the "Walls", Finish Line, and Marker and then move the winning tank to the "Winners Circle". I still want a better music track and some sound effects, but I think first I want to make the tank missiles blow up (or stall) the competitors tank.

I should have also mentioned that in my Micro Tank Battle that I keep playing around with, I have the two tanks and the turrets operate separately. It's here: http://www.greenfoot.org/scenarios/9734

Absolutely, shrucis1. I got the originals from OpenGameArt.org (http://opengameart.org/content/tank-sprite) . I modified it so that it would have moving tank treads (using two images). Also, I changed the colors of the tanks so I could have two different "teams" and then I changed the cannonball to be more round than square. Either way, you're welcome to use the ones from the website or from my scenario.

Thank you very much. I plan to add .1 to the speed on every hit -- but I need to set it as a double first. I also plan on adding some additional skill features -- such as the ball bouncing a little differently depending on where you hit it on the paddles. I may introduce some other features later -- such as a moving wall in the center. Again, thanks for the feedback.