This is a pretty good attempt for your first game jam (my first game was a lot worse than this haha). Controls are mostly solid, the gameplay elements are entertaining, and in general just need polishing (which is hard to do well in a game jam). I am against taking tools from the player in most cases, but in this case it fits the theme and isn't that challenging with simple left/right, making it tolerable.
This game has valuable gameplay and is a good choice for learning how to make these core mechanics. Keep up the good work!