| Gojira tai Mekagojira (1974) (AKA "Godzilla vs. Mechagodzilla") | (Not seen) |
| Chikyu kogeki meirei: Gojira tai Gaigan (1972) (AKA "Godzilla vs. Gigan") | (Not seen) |
| Gojira-Minira-Gabara: Oru kaiju daishingeki (1969) (AKA "All Monsters Attack") | (Not seen) |
| Kaijuto no kessen: Gojira no musuko (1967) (AKA "Son of Godzilla") | (Not seen) |
| Ebirah, Horror of the Deep (1966) (AKA "Gojira, Ebira, Mosura: Nankai no daiketto") | (Not seen) |
| Invasion of Astro-Monster (1965) (AKA "Kaiju daisenso") | (Not seen) |
| Monster of Monsters: Ghidorah (1964) (AKA "San daikaiju: Chikyu saidai no kessen") | (Not seen) |
| Mothra vs. Godzilla (1964) (AKA "Mosura tai Gojira") | (Not seen) |
| Varan the Unbelievable (1962) | (Not seen) |
| Kingu Kongu tai Gojira (1962) (AKA "King Kong vs. Godzilla") | (Not seen) |
| Mosura (1961) (AKA "Mothra") | (Not seen) |