Hi! Thanks for answering my topic :)). Yes, I'm trying to make it, but it's being a great challenge to me XD The quantity of entities in the same screen is a great problem, but I was thinking about to do the system of the game adventure, which uses the system of flickering for to apparently to have a lot of objects rendering in same time. About back ground, I was thinking about to use the same system, but not flickering, but moving to the "block" in right for example, after that to other block, and when u break the block, he stops appearing on this place. And I'm thinking about to use the animation system for to use diferent enemies. The greatest problem is the quantity of possible variables, untill I know, i just can create variables with just one letter, for example: a = 20. I'm yet studying how to do that, and old games that made miracles in atari, like Pitfall or Adventure. I will need to cut a lot of functions, but I think its possible, the ram memory is a great problem yes, I will need to learn how to handle this. The greatest level is my extremally low level of basic, Im yet learning and I'm having problems to find tutorials with more than an episode XD.