Blast! Message to the Reaper
X has received a lot of damage from the Reaper! Teppei and X are in serious trouble! They must become united to save themselves from total destruction and fulfill Maria's dreams! Episode summary graciously provided by Vortex Fansubs
Aired 13/07/1996EP 15 - Blast! Message to the Reaper

1996
B't X
Teppei is going to visit his older brother Kotaro Takamiya during a scientific conference after training with a mysterious woman named Karen for the past 11 years. However his plans for a family reunion become stalled when a woman named Aramis kills everyone in the conference to kidnap Kotaro. Teppei on the way to save his brother encounters a broken mechanical horse called B't X who revives thanks to Teppei's blood and is now his aide to save his brother from the mysterious Machine Empire.