Had to restart twice. First time I took both cubes into the large room, used 2 portals to push the second button and was trapped in the big room. Second time I rode up the funnel to the exit without a cube and couldn't get back down. Map needs work.

Beautiful expansive map.. great fun! Thanks!

First, composition is too coarse.
It is not necessary to use a cube in the room with Funnel.
Next, it may become a deadlock.
First, a cube is moved to a large room only one.
If a cube is put on a scaffold in the air and the start switch of funnel is pushed, a cube will move to the place which it is drawn in a wall and is not accessible.
In this state, if both of portals are moreover opened to this room, the means which returns to the first room will be lost.
Since the cube which can be used is lost, it becomes a deadlock.

simple and fun :))))

Good map. the cube button in the 2nd room was not necessary