Bakuryuu Gattai KillerOh

"Bakuryuu Combine! KillerOh!"

- Combination announcement

KillerOh (キラー王 キラーオー): When AbareKiller's Bakuryuu partners TopGaler and Stegoslidon combine, they form KillerOh. With the Gale Spear (ゲイルスピア), it can perform the Bakuryuu Finisher Death Stinger (爆竜必殺デススティンガー) and the Bakuryuu Finisher Death Combustion (爆竜必殺デスコンバッション) finishers. Other attacks are the Fillet Strike (ヒレストライク), Death Combustion Fire (デスコンバッションファイヤー), and Big Bakuryuu Advance Attack. KillerOh can adopt all of the arm power-ups from the other relevant Bakuryuu. During the battle against Inextinguishable, AbareBlack piloted KillerOh in order to help save Mikoto who was trapped in Inextinguishable's body.

On one occasion KillerOh combined it's energies with AbarenOh and MaxOhJa for an energy attack Special Bakuryuu Great Charge Attack to destroy Trinoid 1: Dragondoran.

Its suit actor was Hirofumi_Fukuzawa.

AbarenOh Slidon
"Bakuryuu Combine! AbarenoSraidon!"

- Combination announcement

Stego can combine with AbarenOh to form AbarenOh Slidon (アバレンオースライドン), serving as a surfboard for the Bakuryuu Finisher Slider Attack (爆竜必殺スライダーアタック) finisher.

Killer AbarenOh
"Great Bakuryuu Fusion! KillerAbarenoh!"

- Combination announcement

Great Bakuryuu Fusion Killer AbarenOh (爆竜大合体キラーアバレンオー): Formed when AbarenOh combines with Bakuryuu Top and Stego, initially to defeat BakurenOh, then appearing later in the series. It attacks by using Stego to slide down Bracho's tail, back, and neck, and then uses Bakuryuu Multi-Combine (爆竜マルチコンバイン), at attack which uses Kera, Tyranno, Bachycelo, Dimenoko, Ankylo, and Parasa as arms at an extremely fast rate before using the Flying Drill Spin (フライングドリルスピン) finisher.

TopGaler can similarly combine with BakurenOh to form Killer Bakurenoh, though this is never seen in either the show or the film. In Dekaranger vs. Abaranger, Killer AbarenOh is formed without Stegoslidon and its finisher in the teamup is Gatling Drill Spin (ガトリングドリルスピン) attack by having the Dekaranger's Super Dekaranger Robo propel Killer Abarenoh forward with its Gatling Punch attack for its Flying Drill Spin instead of Stegoslidon.

Oo-AbarenOh
"Great Strongest Bakuryuu Fusion! OoAbarenoh!"

- Combination announcement

Strongest Bakuryuu Fusion Oo-AbarenOh (爆竜最強合体オオアバレンオー): Created when AbarenOh combines with Stego, Top, the two RhamphoGold, and SpinoGold. It was only used once in the series to destroy Giganoid 11: Inextinguishable. Its finisher is the Bakuryuu Hissatsu Oo-Abare Full Throttle.

Additional Combinations

 * KillerOh can combine with Bakuryuu Bachycelonagurus and Bakuryuu Dimenokodon to become KillerOh Nagurusu Nokodon (キラーオーナグルスノコドン).
 * KillerOh can combine with Bakuryuu Ankyloveilus and Bakuryuu Parasarokkiru to become KillerOh Veilus Rokkiru (キラーオーベイルスロッキル).