Still no change. Do you have an example?

Here is the capx file.

dropbox.com/s/aqqweflpctnrz9g/HM.capx

Somebody know what is wrong with my code?

Here is the section for the carts to be displayed.

Global number Cart_pick_EID =0

Global number Next_Spawn_time = 0

System |Next_Spawn_time <_ time |Set Next_Spawn_time to time+random(3,1)

System | Pick a random sprite1 | Spawner Instance | System Set Cart_pick_EID to choose(1,2,3,4)

System | Cart_pick_EID = 1 | Spawn Cart1 on layer 0 (image point 0)

System | Cart_pick_EID = 2 | Spawn Cart2 on layer 0 (image point 0)

System | Cart_pick_EID = 3 | Spawn Cart3 on layer 0 (image point 0)

System | Cart_pick_EID = 4 | Spawn Cart4 on layer 0 (image point 0)

Gave it bullet behavior and it only comes out from the right side 100 pixels then moves backwards and disappears.

I gave it 180 angle and movement 100*dt and only one moves but not the next 3, but the first one moves the next time it is generated.

I have the code to spawn 1 of 4 sprites at either spawnA location or SpawnB location. How do I get the sprites to move left?

What do you mean with red box and blue box? I mean different enemies. Do you mean collision with overlap? The enemies will overlap the previous one if they are randomly generated on the same path.

Still not clear on creating family, guess I need to read more.

Yes. How is it done?

Is there a way that I can access the time parameter and do the following?

If day time show one back ground or if night time show another back ground and the same with different sprites.

I am stuck on how to create random enemies. I have 8 different sprites and I want to have it generate an enemy at 1 of the 4 path locations from one of the 8.

Yes, different enemies. I work better from examples.