YOU SAID:
Kirby has the ability to copy anything he eats however this ability has been used for many monsters across the years in games and anime
INTO JAPANESE
カービィは彼が食べたものをコピーする能力を持っていますが、この能力はゲームやアニメで長年にわたり多くのモンスターに使用されています
BACK INTO ENGLISH
Kirby has the ability to copy what he ate, but this ability has been used for many monsters for many years in games and animation
INTO JAPANESE
カービィは彼が食べたものをコピーする能力を持っていますが、この能力は、ゲームやアニメーションで何年もの間、多くのモンスターに使用されてきました
BACK INTO ENGLISH
Kirby has the ability to copy what he ate, but this ability has been used for many monsters for many years in games and animation
That didn't even make that much sense in English.