Only a few Dragon Ball enthusiasts noticed Broly's initial appearance in Dragon Ball Z.
Broly, one of Dragon Ball's mightiest warriors, possesses tremendous power and a striking appearance with emerald green hair and golden eyes. However, many fans might have missed his first anime cameo. It happened during the match where Goku battled Pikkon, a warrior from another world, in the Other World Tournament.
The Other World Tournament arc aired in the anime from episodes 195 to 199. In Goku and Pikkon's fight, observant viewers can catch a glimpse of Broly in the audience, briefly appearing before disappearing once again.

The Resurrection Egg plot featuring Broly went unnoticed by many Dragon Ball Z fans due to its swift and discreet nature. For fans attentive to every small detail, this served as a clue indicating the character's impending official debut in the franchise's first film, released simultaneously in 1993.
It's worth noting that Broly's brief cameo in the Other World Tournament is non-canon, meaning it doesn't align with the Dragon Ball manga. Nevertheless, it adds an intriguing aspect when considering how the creators envisioned this character.

Broly's monumental debut in the commercial franchise unfolds in the film 'Dragon Ball Z: The Unstoppable Force,' released in Japan in 1993. Portrayed as an incredibly powerful Saiyan, Broly harbors a deep-seated grudge against Goku and his family in this cinematic venture.