Well, For Five Nights At The Banana Splits, It Was A FNAF Fangame I Planned Back In 2019, The Same Year When The Horror Movie Came Out, Only That Time A Few Months Later...

And The Game Itself Was Gonna Be A 2015-Styled FNAF Fangame, But With Banana Splits PNGs slapped on backgrounds, both Banana Splits and FNAF.

Basically, The Game Description Was:

"Hey Kiddies, Ready for some fun? Five Nights At The Banana Splits is a Banana Splits/FNAF Fangame created by 8bittinkywinky, back in October 31 2019

But I never got a chance to upload this game in 2019 back then, because I was only 10 years old at the time, and I joined in 2021.

And of course, this fangame will also be inspired by The Banana Splits Movie (2019).

Story:

Welcome to The Banana Splits studio. You are a security guard named Robbie Rotten, and you must work the Nightshift from 12:00 AM to 6:00 AM. Be careful of the splits themselves, they might get you, because they will go into the doors, vents, etc.

I'm creating this FNAF fangame by using Game Maker Studio, and the game is gonna be styled in the sort of 2015 fan-game style, with PNG's of The Banana Splits animatronics in the cameras."

And The Original Voice Actors Were:

@treerex0605 - Voice Of The Phone Guy

@CuldeeFell13 - Voice Of Fleegle The Dog

@skylerknotts1846 - Voice Of Bingo The Gorilla

@RustyCraft1 - Voice Of Drooper The Lion

And there were also some easter eggs/cameos for other Hanna Barbera characters, like Huckleberry Hound, Yogi And Boo-Boo, Scooby-Doo and Scrappy-Doo and Atom Ant (They only appear as office desk plushies/action figues)

And The Programs I Used Were Game Maker Studio (Game Textures) And Audiacity (Voices)

And For The Slendy Backyardigans, Well, the roles were similar to SlendyTubbies. For example:
Pablo - Tinky-Winky
Tyrone And Austin - Dipsy
Tasha - Laa-Laa
Uniqua - Po
The screams, well all I remember is that Pablo's scream was gonna be this: https://youtu.be/BFqHyCoypfM?t=19
And the voice actors, I don't remember, since this was made back in November 1 2019
But there were some maps planned too, but the names were unknown..