Deadly Friend (1986)
After his friend is killed by her abusive father, the new kid in town attempts to save her by implanting a robotic microchip into her brain
YuGiOh! Bonds Beyond Time (2010)
After falling through a time slip, Yusei Fudo who has just had his powerful card stolen by a mysterious stranger meets with Judai Yuki and Yugi Muto, who agree to help Yusei defeat the evil Paradox, who is planning to destroy Pegas