One small question

Dear Blendists,
Hi, I am in the middle of making a game that some what looks like space invaders, It’s really just a joke. I was sitting at my nerd station and realized that I dont know how to make the scene change the way i want them to. I want the scene to change after you defeat all of the invading ships, any help as to how I might do that?
thx in advance,
LS studios staff (one guy at a laptop)

ok i would make all of the invaders send out a message when they die(like died) and add a “score-keeper”(like a cube) off screen somewhere, when the cube receives the message “died” it adds 1 to the “score” property, then when the score property is equal to [insert number of ships here] then it switches to whatever scene. hope this helps