Health bar reaches 0 but no death animation?

I have a working health bar that has a maxhp of 100, and my enemy bullets do -10 damage and my health packs +10.
Everything is working great but I'm not sure where or how to script out my player explosion when hp reaches 0.
So as of now the health bar reaches 0 and my player is alive and well, but I would like him to explode and trigger a game over screen.
Do I add collision>script> (not sure how to write it, not good at code) on my player, health bar canvas or enemy bullet?
Very close to the end of my 1st game...have learned a lot but have A LOT to learn
Everything is working great but I'm not sure where or how to script out my player explosion when hp reaches 0.

So as of now the health bar reaches 0 and my player is alive and well, but I would like him to explode and trigger a game over screen.
Do I add collision>script> (not sure how to write it, not good at code) on my player, health bar canvas or enemy bullet?
Very close to the end of my 1st game...have learned a lot but have A LOT to learn
