Getter Rekka 烈火
火斬刀
花乱舞
二刀花乱舞
合わせ風車
二刀合わせ風車
斬魔光

Awase Kaze Guruma = Joined Pinwheel
Nitou Awase Kaze Guruma = Twin Sword Joined Pinwheel
Kazantou = Fire Slasher Sword (I haven't seen En Ka Tou anywhere)
Hana Ranbu = Flower Dance
Nitou Hana Ranbu = Twin Sword Flower Dance
Zan Ma Kou = Demon Slasher Beam

千極針
疾風針
蛇旋光
ゲッター影分身

Getter Shitten 紫電
Sengokuba = Millenium/Thousand Stinger
Shippuuba = Gale Stinger
Ja Sen Kou = Spiral Serpent Beam
Getter Kage Bunshin = Getter Shadow Cloneeees (if I borrow from Naruto)


Getter Kongou 金剛
Totsugeki = Assault
Ha Gan Shou = Rock Splitter Palm 破岩掌
Ooba Shuriken = Giant Blade Shuriken 大刃手裏剣
Shura Bakurai = Chaos Depth Charge 修羅爆雷


Black Getter (Daikessen Ver.)
Ankoku Ranbu = Darkness Blitz (choosing Blitz over Dance)

Gustav
Kakuzan Jirai = Scatter Mines
Oogata Sekisha Hou = Giant something Cannon


Kingdom 007
Chibi Gyorai = Lil Torpedoes
Sensuikan Engou = Submarine Support

Robostone
Sandan Missile = Split Missile