Algodoo

this is awesome, I put a rectangle in front of it and it just dissapeared

I did that too. The bullet moves so fast that you can't see it moving or hitting the object! So, here is a little trick that will capture the moving bullet and freeze its motion upon impact!
1. Place a large box a few meters away in front of the gun barrel.
2. Glue the box to the background. Make sure that the box isn't in contact with the ground. You can move the plane down lower if needed or even delete it.
3. Right click the box and then left click on "Script Menu". In "On collide" add the following script between the brackets: sim.running = false
4. After doing those things, close those open edit windows, click RUN (or the spacebar) and Algodoo will then be in RUN mode. Shoot the gun (Return or Enter key). Algodoo should immediately go into PAUSE mode when the bullet collides with the box you put in front of the gun.
5. Move the box out of the way and you should see the bullet frozen in time and space!

hey xray have you seen my other scenes?

I see ALL scenes because I have to make sure that the rules are followed.

oh god

NO! NOT GOD! I'm just an ADMIN!