jecasc - 9:16 am on Jul 5, 2010 (gmt 0)
I also would recommend a game editor. Several years ago I tried one myself. They work quite simple: You create some sort of playfield with a custom background - like the drawn pacman field, and then insert objects or characters and simply assign events to them. For example that a character should bounce of, when it hits an object, or that the object should fall down and so on.
It was a lot of fun but I do not rememeber the name of the software anymore. Search for game editor or level editor.