I enjoyed this. I've got one ending so far. I've noticed at the moment, it's just one opponent. However, will there be anymore? It feels liky my ending was more of a cliffhanger, as I carried my opponent into the bay and the announcer was still talking.
I always intended this game to just one fight with one opponent--an interactive short story rather than an interactive novel. There are other endings depending on your choices and the outcome of the fight, though. Glad you liked the game!