SRW MX - Mazinger Z Attacks 

funky

スパロボＭＸでマジーン、ゴー！！ バレンドスのグレートマジンガーと共に登場！！ 甲児君が洗脳されているのかデュークさんに声を掛けられて、催眠から目覚めたのだ！！

I’d call it “Powered Rocket Punch” instead of “Giant”

though tbh, this could be more of a nitpick, but if you decided to write Daisharin Rocket Punch, wouldn't it be more uniform if you wrote Kyoukagata Rocket Punch as well? again, it depends on you, this is just a nitpick of mine lol