What console was Kirby's Adventure originally released for?

Kirby's Adventure was originally released for the Nintendo Entertainment System.

HAL Laboratory developed the 1993 platform game for Nintendo's NES, making it the second main Kirby game after Kirby's Dream Land on the Game Boy. It launched in Japan on March 23, 1993, reached North America in May, and arrived in PAL regions on September 12.

The NES version is especially notable because it introduced Kirby's Copy Ability. By swallowing certain enemies, Kirby could gain powers such as Fire, Ice, or Sword, adding more variety and replay value than the simpler first game. The NES hardware also allowed Kirby's Adventure to become the first Kirby title to depict Kirby in color.

A common mix-up is confusing the original release with later versions. Kirby's Adventure was later remade as Kirby: Nightmare in Dream Land for the Game Boy Advance in 2002, and the original was also rereleased through Nintendo's Virtual Console. Those later editions do not change the game's original platform.