Modders tend to reuse sprites such as walking, running, etc... over and over and instead of allocating space for every sprite I now reuse the original sprite and its ID. So what does this mean to you then gamer....2MBytes of RAM has been saved on mods like Final Fight Appocolypse 2nd and Battle Toads. However, a huge mod like A Tale Of Vengence we are saving 8MBytes of memory.