Nice music, art is functional. It's impossible to get a gameover tho, your main pigfly is immortal, but it's easy to get stuck (and forced to reset) if hit by one of the giant knives. Dunno if I missed it, but it doesn't seem different types of pigflies have a functional difference: big pigs, while slowing you more, should be worth more points in the end, while pigflies with baloons should have negative weight perhaps? There's a tight spot towards the end which renders impossible, due to the fast movement of the knife, to complete the game with a big number of pigs, so it seems impossible to go for a "perfect run". The camera is a bit wobbly when hitting obstacles: you should round the coordinates to avoid having it wobble due to decimals changing when hitting the walls. Somehow still, a solid entry.