Generally Frequent Goemon Factsさんのイラストまとめ

In Ganbare Goemon 3, Ebisumaru's weapon was a hula hoop. After freeing the Red Oni from a mirror, he receives a red and white hula hoop, which allows him to latch onto pegs to climb up or down.

Monoshiri jii-san, the creator of Sasuke, Goemon Impact, and Miss Impact is a a well-known pervert in the series. However, this trait was bowdlerized for the U.S. release of Mystical Ninja Starring Goemon. Instead of collecting hentai magazines, he collects car magazines.

Yae's modern look was most likely inspired by her appearance in the manga, minus the horny energy.

Sasuke in the Goemon New Age reboot downgraded to a yee yee ass haircut so he couldn't get bitches on his dick.

In the N64 MNSG manual, he ate 100 dumplings in 10 minutes. In Goemon's Great Adventure, he ate 200 dumplings in 15 minutes. In GB MNSG, he ate 200 dumplings in 10 minutes.

Baban:

A space detective of the galactic space police batallion. She came to this solar system in pursuit of the space pirate Akogingu, but an attack by the enemy left her stranded on Earth. She also happens to be a parody of Space Sheriff Gavan, a 1982 tokusatsu show.

Goroku: A bandit of the rugged valley. Although he's called a bandit, he only targets corrupt officials who line their own pockets. However, charmed by Goemon's chivalrous spirit, he asks to become his apprentice. His language is crude but his heart is kind.

Kuru Nara Koi also gave each character their own Impact. The final models differ heavily from their concept art.

Both Goemon's Great Adventure and Ganbare Goemon: Kuru Nara Koi! Ayashige Ikka no Kuroi Kage were released on December 23rd, 1998. The reason being was that Konami wanted to do a "double deal" since N64 sales in Japan were rather mediocre.