I really like the visual theme of the game and the use of background music for the levels. I like the addition of the checkpoint system and the portal idea is interesting. It was not obvious at first that the player is able to climb on the vines so maybe you could add some kind of indicator that tells the player the vines are interactable. Overall, the game was really enjoyable and I think it's just missing some more visual elements and sprites in some areas to make the art more consistent.