Thanks a lot for playing Gibibit I'm glad you enjoyed your time! I did not have time to properly design the levels to make straightforward the fact there is a second dimension, here's the walkthrough to access it if you so desire :)
- On the antenna of the first telescope at the right of when you begin the game
- Atop the altar on the sky temple
- In front of the ancient lighthouse at the right of the tower
- At the top of the tower
This will then unlock a purple portal which the rings next to the top of the tower lead to, in the second dimension, activate the rings until your friend screams something about corruption, inside the central orb another portal awaits you.