Hello and thank you so much for playing our game!
We'll be improving sound effects on a later date, we're currently focusing on delivering more enemies and stages.
About the game over screen: We won't have any, we believe it's better to be rewarded when you have the upper hand than the other way around, we hope you understand.
Also, thanks for the ideas, taking in consideration the state of the game, how far we are it's unlikely we'll be able to add many new ideas but we'll make sure to improve what we have so you guys can have a better game.
Again, thank you so much for supporting our game.