Disgaea: Afternoon of Darkness Gameplay 05 (Final boss, good ending, Etna Mode opening)

Obviously, spoilers. It's time to bring Laharl's story to a close at last and also show the opening to Etna's story too.
Final boss fight starts at 9:27.
The good ending starts at 30:26.
Etna Mode opening starts at 41:45.
Recorded on Steam Deck running Retroarch under the PPSSPP core.