魔神凯撒

　　《魔神皇帝》（日语：マジンカイザー），是以魔神系列为基础衍生的作品，非原作者（永井豪）所创作，不过仍为系列作品之一。

　　魔神皇帝最早在游戏“超级机器人大战F完结篇”（1998年发售）登场。魔神Z因受到盖特射线的影响，机体发生异变，然后自我进化成魔神皇帝。

　　而在“超级机器人大战α”（2000年发售）中，设定又大幅度修改。当初兜十藏制作原型魔神Z的时候，因性能过强导致无法控制，在启动实验中其动力来源的光子力反应炉发生爆走，结果被封印至光子力研究所的第7机库。

　　由于在“超级机器人大战”系列的角色逐渐吃重，进而推出OVA作品。目前有两部，分别为《魔神皇帝》（マジンカイザー）和《魔神皇帝 死斗！暗黑大将军》（マジンカイザー 死闘！暗黒大将軍）。

　　“カイザー”（kaiser）在德文中有皇帝、帝王的意思，故有“魔神皇帝”的称号。

　　2010年4月23日，正式宣布新作《魔神皇帝SKL》（マジンカイザーSKL）。

Dr. Hell and his Mechanical Beasts are back, and they're more dangerous than ever before. Kouji Kabuto and Tetsuya Tsurugi fight a fierce battle against these hellish machines, which are under the command of Baron Ashura. Unfortunately, they are defeated, with Kouji's Mazinger Z being captured and Tetsuya's Great Mazinger seriously damaged by the enemy.

The devious Dr. Hell quickly converts the captured robot into Ashura Mazinger and uses it to attack the Photo Power Lab. At the same time, Kouji is missing in action, which leaves Testuya to defend the lab in the damaged Great Mazinger. But the forces of Dr. Hell are too strong, even for a brave pilot such as Tetsuya, and all seems to be lost.

The battle seems to be drawing to a close, until an overpowering blast fired by an unknown robot destroys the entire Mechanical Beast army. Could this mysterious robot be the legendary Mazinkaiser, and who is piloting it?