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The CPT costumes from 2016 and 2017 were inspired by old promotional artwork by artist Kinu Nishimura.
Contributed by ZpaceJ0ck0
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A character based on Momotaru from Capcom's puzzle game Pirate Ship Higemaru was considered as a playable character for the game. Birdie was chosen over him in the end, however. Momotaru was instead given a profile in the Street Fighter V character guide in August 2016.
Contributed by ZpaceJ0ck0
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The characters Cody, Guy, Mike Haggar, and Maki from the Final Fight series make a cameo in the "Union Station" background in a banner on the top left of the stage. Additionally, Eisbahn, a character from the rhythm battle RPG game Otoranger (also developed by Capcom) makes a cameo as well on a banner seen on the left of the stage.
Contributed by ZpaceJ0ck0
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Tiffany Lords makes a background cameo in the downloadable Kanzuki Family Private Beach stage along with Hinata Wakaba.
Contributed by ZpaceJ0ck0
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It's possible to access Urien's Street Fighter III costume in game. During the loading screen, holding LP, MK, and HP will alter his intro animation to him burning off his current costume, revealing his classic costume.
Contributed by SOGESNAKE
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Several stage elements as well entire stages themselves were cut completely from the final game. For example, Mike Haggar from the Final Fight series was going to appear on Karin's stage via an elevator that would automatically go up and down, but was cut for being "too random". An example of a stage being cut completely was a military base that contained huge robots and aliens, which was removed for having little to no relation with the storyline.
Contributed by ZpaceJ0ck0
The game's E3 demo and initial release had a glitch on the character select screen. If the second player chose a female character, their breasts would bounce excessively. Capcom later released a patch to correct the bug.
Contributed by ProtoSnake
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The game originally had a more realistic look during it's early stages of development.
Contributed by ZpaceJ0ck0
The creation of newcomer Rashid was a close collaboration between Capcom Japan, Sony, and Capcom's Middle Eastern distributor Pluto Games. Katsuhiro Harada, the producer of rival fighting game series Tekken, also encouraged Yoshinori Ono to include a Middle Eastern fighter in the Street Fighter main games.
Contributed by ZpaceJ0ck0
The idea of a fighter who uses poison in the Street Fighter games was originally considered during the development of Street Fighter III: 3rd Strike, when the team members had a debate on including Remy (a character with a playstyle similar to Guile's) or a different, poison-using character.

Capcom eventually decided to implement this idea with the SFV newcomer, F.A.N.G.
Contributed by ZpaceJ0ck0
The game was unofficially revealed through a YouTube video on December 5, 2014, which was promptly taken down. It was officially revealed the next day during the 2014 PlayStation Experience in Las Vegas and was announced as being developed exclusively for the PlayStation 4 and Microsoft Windows.
Contributed by DrakeVagabond