the problem is the memory consumption. every sprite lays separate in the memory and i've no workaround yet
i've increased the grass number from 3000 to 50000 once and the engine used over 200 (!) mb of my ram.
i can't edit my post anymore; i moved the screens, for those who are interested, visit my homepage:
http://home.arcor.de/phgames - media - conter demo
thanks for your comments, i'll keep you informed on development.
lol i just noticed that they named my demo "rc2" on the contest site, funny since this means nothingelse than Release Canidate 2...