Ah, but Hades doesn't loved Eurydice, she was bitten by a snake. He wanted to keep her on the underworld because it was his duty as underworld God. (http://en.wikipedia.org/wiki/Orpheus)
@Paparoach212kill: Agreed. Is the story of Orpheus and Euridice, from the classic Greek mythology. The only difference is that he convinced Hades singing with his great voice, the best a man can have, not on a fight. I loved the game!
Special Weapons: Excalibur: beat act 19 with first weapon (lightknife) Axia: max out stats to 99 (replay act 18 over and over) The rest: beat loki (BEATING LOKI: Use the Odin ship with the Excalibur weapon and dodge/shoot until "device overdrive" special is charged. Then abuse Odin's invulnerability to get to 200k chain so you score 50%+ bonus to special when invul wears off. Survive until you can fire special a second time. That last special should get you past him. To unlock Odin, beat lv20. To unlock excalibur, beat lv19 with only the first weapon (not as hard as it sounds with upgrades - if you need easy gold, play lv18 over and over)