I know that it isn't an accurate representation of a supernova, but it still explodes "like" a supernova.
Where, you can have a killonova, that is when 2 neutron stars collide and they litterally reareange particles. Not fusion, just turning things into plasma that then makes them into superheavy elements like uranium. It also makes a black hole because the gravitational pull is so stron in one neutron star, that when 2 collide they turn into the densest thing in the universe. A black hole.
Not really a supernova as a supernova is when a Supermassive star, uses up all its hydrogen, and starts to fuse thing into heavier elements till it turns into a neutron star.