if youre on gbs 2 beta 5 theres an on hit player tab on the actor if you checked the collision tab from interact it turns on hit u can then script your gameover screen on there.
Omg, apparently I just had to click on the level not the actors to get the hit player tab. I'm such a silly goose, thanks a lot Elvies. Now Alissa can give me all the game overs she wants. <3