Several bosses in Batman Arkham Asylum. Half of them you don´t even actually fight.
Harley Quinn just throws a lot of weak dudes at you while temporarily electrocuting certain floor parts, which is easy to avoid. When she comes down to fight you herself, you get a cutscene in which Batman punches her twice and then locks her up.
Killer Croc is hardly a boss fight. You walk around the sewers a bit, and as soon as you hear a roar and the music changes, you turn around, fling a batarang in his face, and just keep walking.
The Joker was a... joke (ba-dum-tish). You can just dodge his slow melee attack for a few seconds, he jumps out of the small arena, and throws a lot of weak dudes at you. You beat em up, pull joker down, repeat that twice, and win.
Not that I mind though! I can imagine quite well that the combat engine works a lot less well if you're just doing single target fights, and fighting a lot of weak dudes at the same time is a lot of fun.