Very fun puzzle game. Graphics are simple but feel good. Gameplay is very easy to understand but still entertains. Music sounds good! There is one thing I would change and this is restarting level from game over screen with R key, just like ingame. Using mouse just to press Retry is not the best way for User Experience. Also I noticed red balls goes through green blocks when player squeezes it between himself and wall. And the most important question, why did you removed Godot splash screen? :(

Awesome work! <3 It's very all-around considering it's a game jam:)