the good:
-properly scripted boss fight with pretty good custom sprite.
-not presented by pixel without his permission
-I get to play as my favorite meat
What needs work
-A title that isn't Cave Story
-More movement in the character sprite, its nice and all that he kind of moves up and down when he walks, but nobody liked it from Ghost Cat, and I don't think anyone will like it from a fish
-In his walking animation, king has a white line that s in back of him. adjust your sprites so they aren't cut between frames.
-Everyone when they start seems to try to reuse maps from the original game (most commonly first cave, mimiga village, and egg corridor) try to avoid this as much as possible.
Overall its ok