★ 4.8 Film
Xtro 2: The Second Encounter
1990
Both explore future and monster; both science fiction and horror
★ 4.5 Film
Creepozoids
1987
Both explore monster and alien; both science fiction and horror
★ 5.6 Film
The Deadly Spawn
1983
Both explore monster and alien; both science fiction and horror
★ 4.3 Film
The Terror Within II
1991
Both explore monster; both science fiction and horror
★ 4.1 Film
Inseminoid
1981
Both explore alien; both science fiction and horror
★ 4.5 Film
The Terror Within
1989
Both explore monster; both science fiction and horror