Guys, those are all good ideas.

But I think there is a problem with panel, array, and x,y detection.

In that way, the collision is box based not pixel based. It will only detect what`s touching the boxed outline of the shape. This can be ok in some cases, but mostly we need precise detection based on pixel boundaries.

I`m sure you know what I mean.
For example, if you have something like Space Invaders, you want a rocket to hit the invader precisely and not in the space around him since his not a box but specific shape inside the box.

That's what I'm trying to achieve. 2D objects (or something like them) with pixel based collisions.

Superku described how to make a 2d rpg style collision detection. I described how to make a Mario style game collision detection. To achieve what you want take my style a bit further and have the script look at the pixels to see if they are "alpha" or invisible and still allow the movement.

Your game will only be limited by your skill and nothing else.

Yes, I`ll try that. Thanks.

Just, what you mean by "the 2.5d"? What is it?
You said "Also the 2.5d option is much easier."

2,5d means:
Your complete game is in 3D, but only shown from the sideview. Like the game Superku ^^