I nominate..."B't X"
Wikipedia says it came out in 1996. You really can't tell by the animation. It reminds me of stuff from the 80's in my opinion.
Wikipedia said:B't X (ビート・エックス, B't X?), pronounced "beat X", is a sci-fi mecha manga and anime series created by Japanese mangaka and writer Masami Kurumada. It ran for 16 volumes in manga and became an anime with 25 episodes, concluded with an 14 episode OVA (called B'T X Neo). The manga was released in America by Tokyopop. The anime was released in America by Westlake Entertainment. When B't X was released in America by Tokyopop, all of the sound effects in the manga were done in Japanese, just as in the original version and in most other Tokyopop Manga.
Wikipedia says it came out in 1996. You really can't tell by the animation. It reminds me of stuff from the 80's in my opinion.