Thank you for your answers. So, if I understand well, it could be fine to take my 2400x1800 image and tile it in, let's say 100x100 tiles ? Ok, now, I should have about 430 tiles. So, what's the deal ? I have to tell B2d to show only tiles that are necesseray depending on the player placement ? So, I have to create a routine to load/unload tiles from memory depending on which are necessary ? That's it ? Did I understand ? :)