Dynamic Watchlist Hub: Feb 07, 2026

10 Best Movies Like Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster

If you loved Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster, we've curated the perfect watchlist for you based on shared genres, themes, and directorial style.

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Expert Review & Ratings

See our full critical analysis and audience score for Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster.

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#1
G.

G.

2010★ 7.3

Why watch this? A perfect follow-up to Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster for fans of Fantasy. It captures a similar compelling atmosphere.

G. remembers how he came up with an idea, and devoted his life to make it happen. Now he is making progress and achieves an extraordinary act, only with the power of his mind....

#2
Baba Yaga

Baba Yaga

1973★ 5.5

Why watch this? A perfect follow-up to Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster for fans of Horror. It captures a similar spine-chilling atmosphere.

Carroll Baker stars in this psychedelic shocker about a mysterious witch who casts a spell over attractive, youthful fashion photographer Valentina Rosselli. Thrust into a world of...

#3
Julieta

Julieta

2016★ 7.0

Why watch this? A perfect follow-up to Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster for fans of Drama. It captures a similar emotionally gripping atmosphere.

The film spans 30 years in Julieta’s life from a nostalgic 1985 where everything seems hopeful, to 2015 where her life appears to be beyond repair and she is on the verge of madnes...

#4
Opera

Opera

1987★ 6.8

Why watch this? A perfect follow-up to Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster for fans of Horror. It captures a similar spine-chilling atmosphere.

A young opera singer is stalked by a deranged fan bent on killing the people associated with her to claim her for himself....

#5
Joker

Joker

2019★ 8.1

Why watch this? A perfect follow-up to Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster for fans of Crime. It captures a similar emotionally gripping atmosphere.

During the 1980s, a failed stand-up comedian is driven insane and turns to a life of crime and chaos in Gotham City while becoming an infamous psychopathic crime figure....

#6
Oppenheimer

Oppenheimer

2023★ 8.0

Why watch this? A perfect follow-up to Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster for fans of Drama. It captures a similar emotionally gripping atmosphere.

The story of J. Robert Oppenheimer's role in the development of the atomic bomb during World War II....