Pretty great and fun game! I do find it frustrating that the ball doesn't jump high enough. My game is just a simple platformer https://retrorealms.itch.io/nokia-pirate
The levels are designed so it makes the game hard, and by hard sometimes it means to be precise. It is not that the ball does not jump high enough, but the position and the accuracy it is not quite ideal. But I am happy that you enjoyed it!! I will check your game!
