Yeah, I'm working on a program found here http://www.greenfoot.org/scenarios/3750 that soon you will be able to easily edit image files in where you can make a transparent background and such.

Scenario's posted don't have to be spectacular. They are projects, usually in progress to become better and to learn from. If you don't have any constructive criticism to contribute, please don't criticize at all.

Fantastic! XD I like sliding on the ground, and the climbing animation. And the ice effect. And the conveyer belt is sweet. I feel like I'm walking on the moon in the water though. Can't swim, but if you could with a swimming animation would look great I think. And if you could get it so that the blocks at the edge of the screen get added to the world before they are actually on the screen will make it much smoother. Also make the character's image with a transparent background.

Looking pretty good so far. Couple things, I had to slow down the execution speed because how fast it was trying to run. There seems to be quite a bit of lag in the animation. Plus things spawn again too quickly. Don't seem to be able to throw throwing stars in the left direction. Also the 'a' and 's' attacks don't seem to do anything as the opponents instantly daze you if you are too close. However I think it's a great start and I really like demolishing through the walls =)

Awesome! Maybe make the "food" be those fish flakes food that scatters a bit as it floats on the surface of the water. Also some water effects =)