300MB is quite a small amount of space, I must agree. I have a feeling that the game is going to be sold online either through shareware or ordering and not being sold in stores, just because it is so hard to find a publisher willing to sell a 2D game. If it is going to be sold through shareware versions (I'm talking about the type where you have to purchace a number key to play properly), the game will be at least 90 megs ziped, unless it is disgustingly small. I also estimate that possum tilesets will be bigger than jazz2 ones because they are 24 bit, and the levels will probably be bigger because of the more powerufull (or so I hear) engine. In that case, I doubt that the 300 meg limit would last more than a year.