How many movies have Koichi Horikawa and Koji Sugiura collaborated on?

They have worked on 5 movies together! Their first movie together was Mobile Suit Gundam 0083: Afterglow of Zeon (1992) while their highest rated movie together was My Hero Academia: Heroes Rising (2019). They have not worked together since My Hero Academia: Heroes Rising (2019). They are most known for their animation films together.

My Hero Academia: Heroes Rising (2019)

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Key Animation
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Key Animation

Anemone: Eureka Seven Hi-Evolution (2018)

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Animation Director
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Key Animation

Escaflowne: The Movie (2000)

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Key Animation
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Key Animation

Mobile Suit Gundam: The 08th MS Team - Miller's Report (1998)

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Key Animation
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Key Animation
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Animation Director

Mobile Suit Gundam 0083: Afterglow of Zeon (1992)

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Key Animation
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Key Animation