Optimus got the decepticons outside of beacon
Optimus: decepticons if we are to stand any chance against Unicron you must touch this cube
Megatron: fine but me first
Megatron walks up touches it and is transformed into a truck
Starscream: my leige?
Then they see
Starscream: my turn
Starscream touches it and is turned into a jet
Then they see him fly up to a bridge
Dreadwing: my turn
Dreadwing touches it and is turned into a jet
Then they see him transform
( couldn't find a video )
Barricade: my turn
Barricade touches it and is turned into a car
Then they see him transform
Soundwave walks up and touches it and is turned into a jet
Then they see him transform
Then shockwave touches it and is turned into a tank
Then they see him transform
Then lockdown touches it and is turned into a car
Then they see him transform
Then finally blackout touches it and is turned into a chopper
Then they see him transform
Optimus: how do you all feel
Megatron: good optimus now how do we change back
Optimus: focus and say transform back
They do so and head to Ozpin's office for planning the first part in defeating Unicron