So, I can tell that bourne, erdelf, Kartoffelbrot, EricVogel, and myself have all tried to send a message

I got zero, is that supposed to happen?

It is a lot of fun! But I can kill my own characters

*"player to stop"

And if you would like the tie fighters to keep moving but the actor to stop try looking at http://www.greenfoot.org/scenarios/5881

But it isn't in seconds.... i think that two seconds would be something like 200 if the speed is default (not sure though)

Greenfoot.delay(int time);

Perhaps removing all the actors (or at least the player) after you lose and after there is a little explosion time?

After you lose if you press run you can play as a cloud of fire