ok
sorry if i couldnt be a bit clear...
200 grass sprites only apply to the vision of the player. example, the level
has to have 1000 grass sprites to cover the land decently, but i need 200 visible.
But im getting a problem with it, I´ll explain to you the real thing so you can have a more clear vision of the problem:

"Basically im throwing rocks at a castle, and when it hits the castle wall, it disappears and create 10 small rocks with c_move and c_trace running on each of them ( each small rock has 12 faces), then they fall to the ground and some seconds later they disappear and all their functions terminated."

NOW the problem, if there is more than ~300 grass sprites in the level EVEN WITH THEIR FLAG INVISIBLE ON, and i throw the rock at the castle, when it creates those 10 small rocks, the FPS drops from 60 to 35/40! until they disappear and it comes back to 60.

So the most i could get was 200 grass and the FPS still drops 8 to 10fpss(~52fps)

Did you get the Drama?

(my current pc specs is AMD Athlon 1600mhz 256mb ram Video Card GeForce4 but i get the same results in a P4 2.6 512ram video card ATI Radeon 345m 128 shared with the ram memory)