Ah thank you so much for the praise!
I was also really surprised with how well this game turned out, will definitely work on it a bit further this coming year. And yea, checkpoints are a must do for this game, being one the most requested feature to far. Also one thing that happened was the lack of QA testing for the game, I was able to beat the game easily at first, so I amped the difficulty before releasing the game and didn't bother to test much further. Which isn't reliable since I have my own bias, since I know where everything is and how to properly evade the bird xd.
But anyways, thanks for the feedback and more updates to come out soon!