First of all, thank you for playing our game and leaving a comment. Maybe your are the only person who enjoys the first episode to be hard. :D For the dummy portal thing, we are currently working on it, we are planning that if the all stones are collected and there is only 1 portal pair left, the player won't have to use a dummy portal to reach the door. The character will automatically move to the door instead. Also, thank you for your comment about mobile at the end. These feedbacks are very important for us.