This is how you create images on the game's screen in any scene.
But all sprites must be disposed correctly upon leaving the scene, that is mandatory.
You can do that this way:
First, you dispose the bitmap, than the sprite itself. You should call this either in the scene class' 'terminate' or 'dispose_all_windows' method.
To move around the image, you can alter it's Y position in the 'update' method of the scene class. Just make your conditions (when to start, where to stop, etc) and based on those, move your image how you like.
# If the image is visible on the screen, move the image upwards
if @pic.y > -@pic.bitmap.height
@pic.y -= 1 # 1 is the speed of the movement
This example will scroll the image upwards until it gets out of screen completely. It assumes that the starting Y position was 0 (top of the screen) for the sprite.
I just assumed that you want to make a scrolling credit list (judging by your script and method names), that's why I wrote these examples.
Based on what other things you want to do on that scene, you will need to add other code-bits obviously. I recommend you to search for some tutorials on how to manipulate sprites in Ruby. Once you learn that, working with images will be as easy as hitting the bed at the end of the day.
Vegan post. Pic of a pig in a suit and tie like he is laying in a coffin but it's a sandwich. 'One meal soon forgotten, in exchange for a whole life." Really don't think rolling around in poop your whole life would be so valuable.