Maaaaan if you hold the key until the letter bar is charged you throw a wave bomb (that was the meaning of the "BOMB" UI element) so you can destroy some letters and the gameplay is more enjoyable. But you didn't have to know that, it's my fault. I will add a tutorial to the game to explain it better. I am sorry you missed that, but this was very very useful and make me learn, so thank you so much for giving me this feedback.