BT's bucket has somewhat of limited movement but does a decent job of simulating "dumping".  BuildBoy is the only vehicle of the four that doesn't have a moving part (shovel).  

ROBOT MODE:   BuildTyphoon has one of the easiest transformations that begins with lifting the bucket upward while still connected to the Gray arm and keeping it parallel with the surface.  Rotate the cab with the arm/bucket 180 degrees.  There are two Gray parts on either side of the vehicles' body which are the arms and hands of BT.  Raise both hands in the up position.   Also raise the two Black pieces located at the rear of the vehicle.  These form BT's feet.  Now fold out both arms at the elbow joints then rotate the shoulder joints inward so that the front tires are facing up.

Moving on to the legs, grab the rear of the vehicle where the toes of BT are located and extend them from the main body.  The pelvic region may need to be reconnected forming  the letter "M".  Now stand BuildTyphoon on his newly formed legs.

Rotate the bucket so that the lip which extended above the cab in vehicle mode is at the top.  Now fold the bucket over the body which should fit snug over the Gray joint.  To create his head, rotate the cab upward 180 degrees, lower the flap which is actually the cab's roof and extend BT's head.  Close the flap/torso and you're done!

BuildTyphoon now stands at approximately 5" in robot mode.

BuildTyphoon in Robot Mode with his Bucket Claw weapon.

Here's a close up photo of Typhoon's head.

BuildTyphoon has a Bucket Claw weapon which is stored on his back when not in use.  Sometimes he seems like he'd topple backwards with that extra weight, but the neat little feature which isn't identified in the instruction sheet is that two flaps or "heels" can be extended which provides more stability.   It almost looks as if he's wearing skis since his toes are quite long.

When BT's weapon is attached to his fist it has a neat little spring loaded function that lets you open and close the claw when you depress the lever.  It's an awfully big weapon for BT but he's quite stocky so it doesn't look that bad.

BuildTyphoon wears a Yellow helmet with an Orange visor, Silver painted face, and that smirk on his face.  It seems like Takara likes to have at least one figure with a smirk such as GelShark.

I really like the easy transformation and especially BT's vehicle mode with it's smooth roll on any surface.  BuildTyphoon and BuildCyclone are probably my favorite of the four BuildMasters because of their size and appearance.

NOTE:  BuildTyphoon can be transformed into BuildKing's arms, either leg, and as a weapon.