How do I destroy the one with 0 HP

Hi, All.

I wanted to make the meteor destroyed which only have 0 or less HP. And the Meteors are spawned continually.

Each Meteor should be destroyed when they got hit by bullet 3 times.

I tried to make it happen by picking IID and HP condition but failed.

Somebody can help me? I attached the file.

https://dl.dropboxusercontent.com/u/3735120/CAP.capx

Delete 'System| pick meteo_S instance meteo_S.IID' it's not necessary and you don't specify which IID you mean.

Then it should work.

Thank you for your help!

I added IID part because all the meteors were destroyed at once.

I don't know exactly what I have changed.

But anyway, It is working now.