Here's your first puzzle! However, there are two things to worry about now...
Information:
Cubes can be easily pushed but DO NOT hit them too hard or they will bounce around and be hard to move where you want it
There may be more than one cube per level but should be placed in the most logical portal; otherwise it will not trigger correctly!
Portals will NOT trigger (always) when drving in backwards as the trigger occurs at the front of the vehicle
Portals are linked by colour; a blue portal leads to another blue portal
Direction AND momentum are conserved when going through a portal; ie, if a portal is on the west wall and so is the linked portal, then you will still be facing the west direction and be travelling a velocity in the direction west
Portals are not a one-way transaction (those who have only one direction will be placed in unreachable areas); each portal leads to its corresponding colour
Black portals only allow BOXES through; your car cannot go through them
Do not go through the portal too fast (10 MPH) or you may crash into a wall on the other side or loop back and forth between portals.
Boxes can enter portals, even if they are not black
The number above the box deposit area tells you how many boxes can be placed there; some deposit areas move objects with every box given, some only move objects when ALL boxes are given
The picture shown when triggering gravity shows the gravity that will activate
Anvils where boxes can be deposited means that a wall can be moved but requires more weight
Boxes do not constantly trigger when stationary in a deposited area; you will need to remove and move them into the area again to trigger the event