+ Every 3000 milliseconds
+ System: Create object explosionSprite
-> explosionSprite: Set X to random(1024)
-> explosionSprite: Set Y to random(768)
Don't know what you mean about making it scroll, though. Objects scroll along with the screen automatically.[/quote:3mcagpfl]
I'm thinking he wants the explosions on screen locked to the scrolling and to continue on as the play area scrolls (like flying through AA flak during the war, explosions all around you). In which case Aquadragon, just do what deadeye said, but change the random size to take into account your entire play area. But remember you'll have to increase the speed or you wont see them as often. That and maybe copy the action a couple of times (looks pretty good with lots on screen at once, just needs some smoking trails on missiles and it'll be like BSG!).