I really like this game! The movement is fun, the sounds are cute, and the gameplay is difficult enough that it provides a good challenge. Some of the areas I think are a bit harsh, and I got some flappy bird ptsd when I collected enough feathers to start really chaining the flaps. The only negative point I think I'd have is that it was difficult for me to see some of the toxic gas, as although they are a different colour, their shape blends in to the background quite easily. But hats off to you for making such a well rounded (and extensive) game!