Thank you for your feedback! The voice over is credited to Andrew, and it's quite funny to listen to.
You are right, you can avoid the box barrier if you go very far left/right. We should make the boxes cover the entire area
Hi, I just updated the game and posted a new build of the game(Harder version) that makes sure that the boxes pile up in a way that blocks the player to throw the boxes from the right/left sides of the room.