Remember to keep your download and title submission the same. A solid attempt at making a "Flappy Bird" style game, its evident that effort has been made to replicate it.
There is a fair amount of room for improvement with this game. Firstly, score only increases when hitting the red button which would be an interesting way of getting points if it wasn't almost impossible to hit the button and not the pillar. Secondly, the character's hitbox could be tweaked to make it a bit more forgiving, although making it difficult from the get go is a viable option but is largely inaccessible for a hyper-casual audience. Finally, some attention to graphics, preventing compression of images, and polishing would go a long way to improving the player experience.
Overall, whilst there are improvements to be made, a game has been made in 5 days which is an accomplishment in itself. Some more focus on improving gameplay would be the key task going forward.