Collision, And Game Over Stuff

Hey guys, please help me with this! I have been trying and trying to make this guy in my bounce game to die when he hits the ground and go to a game over screen. he wont die when he touches the ground. HELP!

 

Make the ground object physics and set it to static

 

Also there are collisions issues so you'll need to adjust the collision on your character

 

@ACommonMorning well that's simple, just place defeat after if collide, here is the screenshot

 

but, i dont know how collision works. Thanks for the help though