Thank you for playing the game! The green wall was supposed to be opened with a button opposite of it, the button can be hard to trigger though, since it sometimes doesn`t register the web.
The button is now fixed! It triggers by shooting your net on it from afar, there might still be comlications if you're on the sam net as the one on the button. Please fell free to give us some more/new feedback if you want to! (please dont feel pressured if you dont wanna play/comment again)