Urotsukidôji II: Legend of the Demon Womb (1993)

Using the now famous Nazi Death-Rape machine, Dr Munhihausen Sr. is calling forth the Overfiend, but the experiment goes wildly wrong. Now taking over for his father, Munhihausen Jr. is poised to try again. Using a new stronger machine, alloys & improved engines... Will he succeed in killing the Overfiend, then taking control over Earth....?!?