All bosses from Castle Crashers, played using the ice knight. I went through only leveling up damage and defense.

Timestamps:

War Machine (Miniboss) 0:03
Barbarian Boss 0:58
Troll Mother (Miniboss) 2:04
Giant Troll (Chase) 2:53
Catfish 4:35
Bear Boss (Miniboss) 6:29
Pipistrello 6:54
Conehead Groom 8:04
Giant Troll 10:32
Cyclops 10:56
Volcano (Miniboss) 12:25
Dragon & Sock Puppet 13:16
Industrial Machine 14:14
Alien Ship x2 (Miniboss) 17:07
Corn Boss 18:11
Medusa 21:47
Frost King 23:39
Painter 26:36
Undead Cyclops 27:54
Necromancer 30:10
Crystal Shards (Miniboss) 35:20
Evil Wizard 36:24