I'll never forget when I first fought Luca Blight in
Suikoden II. The guy who killed dozens of his own country's young army recruits (framing another country) and causing a second war while peace conferences for the first were being held, <<
www.youtube.com/watch?v=BhNCbGDE4GI|burned entire towns to the ground>> and was overall responsible for the deaths of tens of thousands, both directly and indirectly.
You need to fight this guy
3 times with a total of
18 people just to weaken him, and he's no pushover; he can easily kill an unprepared party since his attacks can hit up to 3 targets for a good chunk of their HP or he can just hit 1 character 3 times (this easily kills any characters who weren't properly leveled). My first time fighting him my first party got wiped pretty quickly (I'm pretty sure that you don't have to beat him with all 3 parties, only the last, but I didn't know that).
Once the 3 fights are over, he's still walking around and screaming with rage, barely phased by his wounds. He walks away, forcing you to chase after him (fighting a bunch of enemies along the way). Once you catch up <<
youtu.be/QLH8fpElZ6w?t=6m9s|a cutscene begins>>.
Even after fighting off 18 people and getting shot by a volley of arrows he's not done. He rushes the main character and fights him in a one-on-one duel. After defeating him he doesn't seem afraid; he just laughs, tells you that his death will change nothing and says one my favourite quotes:
"It took hundreds to kill me but I killed humans by the thousands!!!! Look at me!!!! I am sublime!!!! I am the true face of evil!!!!"In the end, he was right: his death didn't end anything - the dead were still dead, the people of both countries wanted vengeance and the war continued.
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I also have a couple of boss fights that I loved just for the challenge of them, especially ones from the
Etrian Odyssey games. The superbosses are each a mountainous challenge for level 99 parties with the best gear. There are always gimmicks that you can use to beat them in a few turns, but where's the fun in that?