X-Men: Pryde of the X-Men

Just as teenage mutant Kitty Pryde is welcomed to the X-Men, the team of mutant heroes are called into battle to prevent Magneto and his Brotherhood of Evil Mutants from crashing a comet into the Earth.

X-Men: Pryde of the X-Men is an animated television pilot originally broadcast in 1989 on the Marvel Action Universe television block, featuring Marvel Comics’ mutant superheroes the X-Men. The pilot aired infrequently in syndication, and was later released on video. It later served as the basis for Konami's X-Men arcade game. The animation for this pilot was done by Toei Animation.

(Sources: Wikipedia and IMDB)