The game feels strange for several reasons:
- there are no sounds or music, which makes what is happening a strange silent movie
- the idea seems strange plot-wise, which is not always a bad thing, but I would add more humor to make the situation even more absurd. For example, you can add people who fall out of the balloon when it turns upside down.
- I like that the boat is not convenient to control - it makes the game process less trivial
- I would add some kind of opportunity for the player to push the balloon up, for example with hot steam from a ship’s chimney
- I don't like that the ball flies off the screen and the player has to play blindly outside the camera - it's not fun and feels like a bug. You can give the balloon the ability to bounce off walls, or let it be immediately struck by lightning or eaten by a huge whale - anyway, the game ends immediately when the balloon leaves the screen.