I just got it last night, and wow, it blew my mind. So simple and great.
Because I just started playing, I only did simple combos so I don't know every finisher move. Can you guys help write down the finisher move? I'll write that I know: (CMIIW, please!)
(------finishing move spoiler-----)
0-10 combo: The Duke hops on the monster and performs zangief-like atomic pile buster move. 50 combo: The Duke sprouts black wings, fly and kicks the monster to the ground. 50+ (forgot) combo: The Duke sprouts black wings, fly even further to outer space, and shoots beam to the monster.
If anyone can write a full combo finisher than it would be great for the community :D