I really like the style of the game, especially the mouse is cute. I've found some minor bugs that if the player walks directly to the left when starting the game, they will come to an air platform with no background, and maybe an air wall can be added so that the player can't reach that area. In addition, the first layer of spider behavior is really a bit weird LOL. I love the design. In the second level, you may need to give some differences to the blocks that will fall, otherwise the player will not be able to react when they first pass, which I feel a little unfair.