Pressing the BGM button on the other hand, will play various BGM that was used in the series, most notably the TV size versions of the show's opening theme "Ore Koso Only One" and "Don't Boo! Donbrothers". The item has a total of six BGM. This Premium Bandai web exclusive item cost 16,500 yen and is set for a November release. Pre-orders for the item will end on April 13th. Lastly, if you pre-order yours from February 27-March 13, you will also get the King-Ohger Robotaro Gear!