Almost perfect
1) If you throw 2 harpoons repeatedly, Moby gets the damage of 1 Harpoon
2) While Moby is attacking or respawning, it's invincible
3) Fix the shadow under Ahab, sometimes it's there, sometimes it's not. I've got paranoid of shadows.
4) Throwing harpoons while jumping would help
5) Maybe making an achievement for harpooning Moby's eye? It's not easy to be done, also not that hard, but it's possible.
I can't believe I would ever go toe to toe with Moby Dick, the deadliest natural monster ever exist perhaps? The track was epic. But sometimes it's too hard to avoid attacks like Siamese water drops (2-3water drops stick together), & water drop follow up by a ram. The plain plank that is in between of the 2 spike planks should be removed or do something about it, it's hard to jump across them, especially when Ahab can jump really really far during Moby's bite chase. Sadly, after you played it once, Moby Dick is predictable. Good enough for 3 day work I guess.
Here's the attack moves
-Ramming
-Water drops
-Jump n Dive
-Bite chase
Have fun creating an alternate ending :D