How does the primary energy mechanism of a hypernova fundamentally differ from a standard Type II Supernova?

Hypernova relies on black hole formation and jet launching; Type II relies on core bounce/shockwave.

The core difference lies in the endpoint of the core collapse. A standard Type II Supernova is driven by the core collapsing until it forms a dense remnant (often a neutron star), causing the outer layers to rebound off this dense core via a shockwave. In contrast, the hypernova mechanism involves the core collapsing completely past the neutron star stage directly into a black hole, which then launches powerful relativistic jets. It is the energy deposited by these jets, rather than the typical shockwave, that powers the hypernova.