Transformation is easy: the doors and front wheels pull out to form arms, the bonnet folds forward to become the chest, the legs unfold and the feet fold down.
As you mignt be able to tell from that, his articulation has had a major upgrade from the ROTF model with bending ankles & knees, ball jointed hips & outer shoulders plus inner shoulders that swing back. His left hand has a c-clip shape moulded into it for him told hold Cyberverse weapons. He's presently stood in front of me touting Ironhide's combined blaster. Bumblebee comes with a V shaped jetpack that clips round his back. Sadly he can't wear it in car mode.
But it's not the figure you want me to talk about is it?
Bumblebee comes with what's labelled as an Mobile Battle Bunker. Once you transform it into vehicle mode, it's a green APC towing a grey trailer. There's space on the trailer and the roof for a Cyberverse vehicle: Ironhide's sitting on the back of mine with Barricade riding on the roof. On the front of the vehicle is a 3mm bar and matching clip: you could connect two of these nose to nose, have him towed by Optimus Prime's trailer or mount weapons on the front. Littered over the vehicle are a number of 3mm peg holes, three on each side and two on the top, for Cyberverse weapons to be plugged into. I've got Prime's Blasters plugged into my roof holes and still have room for Barricade. The instructions show Bumblebee's jet pack attached to the top of the vehicle but I can't find any way to properly attach it so have stored it under the trailer where it fits nicely. He comes with one weapon you can peg in to the holes: a missile. When not in use the missile is also stored under the trailer. If you get the balance right Bumblebee can just about hold it. The missile fits into a launcher formed by folding the upper car deck up & forward then swinging the car plates down 180 degrees. The launcher then sits over the front of the vehicle, and a 3mm bar is exposed on it's stem.
By folding out the missile launcher, then folding the ramp onto the back of the APC and facing the cannon backwards a mobile armoured missile platform can be formed.
For his official base mode one remove any added and stored weapons from the APC mode. Turn the vehicle onto it's roof, then turn the trailer so the top faces up. Fold the trailer down to form a ramp. Split the cab of the APC in two down the middle and fold to the sides. Raise the towers out of the APC cab halves.
Basically it's a ramp. We like ramps. And as a bonus it's a ramp with a launcher! At the top of the ramp is a platform and at the back of the platform is a little black lever that when pressed raises the platform catapulting any vehicle on it down the ramp. The towers each have a 5mm peg hole in the top of them allowing additional larger Mechtech weapons to be mounted there. The 3mm bar and c-clip connector have ended up on either side of the base mode allowing it to be attached to any of the other Cyberverse bases. However due to the way the back of the base is made from the opened out APC cab it should be possible to connect a pair of these bases back to back to form a larger structure. If I've one complaint about the base mode then it concerns the towers: They're obviously 6 barrelled Gattling Guns and my inclination is to fold either them forward or swing the cab halves forward so they point in that direction.
Base Mode 2 is formed by taking Base Mode 1 and folding the missile launcher out from underneath it, up the back of the base and pointing it forward over the ramp. Bumblebee or another Cyberverse figure can then stand behind the base and hold the missile launcher using the 3mm bar handles at the rear of the launcher.
This set is top stuff, especially when you get a few other Cyberverse sets to link it up to. Because the set includes a Legends/Legion size toy, the accompanying base is larger and more substantial than the bases that come with the Commander figures in the wave 2 Action Sets. If you're going to own the Cyberverse bases you need at least one of these to form part of it.