★ 4.2 Film
Mad Doctor of Blood Island
1969
Same creator (Eddie Romero); both explore monster and mad scientist
★ 5.1 Film
Blood Tide
1982
Both explore monster; both adventure and horror
★ 4.9 Film
Journey to the Seventh Planet
1962
Both explore monster; both adventure and horror
★ 6.3 Film
Wrath of Daimajin
1966
Both explore monster and sequel; both adventure and horror
★ 4.5 Film
Savage Sisters
1974
Same creator (Eddie Romero); both explore island
★ 5.3 Film
The Return of Count Yorga
1971
Both explore sequel; both horror