Let's set the stage:

It's been a few years (maybe 1956 since that's when the VCR was invented?) since Rose and Ollie Sorenson’s daring escape from Joey Drew's twisted cartoon world, the Cycle. Ollie is well on his way to becoming a teenager, and Rose has been trying to move forward with her life. But no matter where she goes, the hallucination of Bendy follows her, and the guilt of losing Evan and Archie still eats at her soul. 

By some miraculous chance, Rose ends up with a VHS tape with a recording of the Joey Drew Show on it (maybe she recorded a rerun, or maybe she found it in someone else's junk/the library discards). The special TV has been unplugged for years, and her 3D glasses are snapped in half. But she wonders if maybe, just maybe, there's a way to go back and save them. So she tapes the glasses together and pops in the tape to see if her access point is still there. And sure enough, she's got a way in! 

With the help of Ollie and Dot, Rose makes it her mission to rescue Evan and Archie from their inky fates. Will she be successful, or will she find the ink pulling her under?

Gameplay:

I imagine this would work well as a first person action adventure experience that's mission based. (That said, upon consulting friends, I've had the suggestion for a Nancy Drew visual novel styled game, and that feels like it would be fun and maybe more achievable if I tried to make it real.) It has elements in common with BATDR, but the world isn't quite as open. Taking some inspiration from FNAF Security Breach Ruin and FNAF Help Wanted 2, Rose puts on her 3D glasses to dive into the cycle, which is our primary environment for exploration. In the cycle, she travels through a variety of areas to look for Evan and Archie, encountering a cast of quirky characters, some known fan favorites, and some new. On her quest to find them, Rose finds several items to help her solve puzzles and leave notes for her friends/mark her path. 

Rose’s central hub is in the living room of her real world house. Here, she can consult Ollie and Dot, look through notes of things she's seen on her adventure, and equip items to take with her into the cycle. That said, some of the horror would come from having something in the real world that shouldn't be there. The farther Rose goes, the more her hallucinated Bendy shows up. Sometimes he's there to tease her, and sometimes he has helpful hints about how to traverse the cycle. (Keep this in mind for later, this will be story relevant.)

While having the VHS tape means Rose can enter the cycle whenever she wants, there is a limitation. She can only stay in the cycle for as long as the tape runs for. This means she has to get in, complete her objective, and get out. Given this game would have some puzzle elements, I would feel bad putting someone in a time constraint to solve them. So rather than taking a Hades or Splatoon 3 Side Order approach, I'd rather let the levels themselves take however long they need to. The time limit wouldn't be imposed until Rose has completed her objective, where it's a mad dash to get back to a designated safety area (like Joey's office) so she can take off the glasses and get out. Think of it kind of like Pizza Tower. It could also lend itself well to some close encounters running away from monsters at the end of a mission. It would be interesting to use the Little Miracle Stations as a potential safe area to pause and exit the cycle mid-mission, given the ad for them that exists in BATIM Chapter 5. (This is the thing I wouldn't know how to translate if this was tackled as a visual novel instead.)

I’m tempted to throw something in here with closing your eyes as a mechanic, given the scene in FTB where Ollie walks back up to the entrance by imagining he’s walking on clouds. Letting Rose have one moment to do something impossible by focusing and using her imagination would be great. It would take a lot out of her, having it as a once-a-mission kind of deal might make sense. 

Another mechanic is the tape player. Per the Fade to Black moment of Joey talking to Rose ala the tape player, Rose being able to communicate with Dot or Ollie would be useful. It could work as a hint system, but it also works for plot elements. Using the tapes as a walkie talkie of sorts would also be interesting for having some interference from our antagonist, or for keeping in touch with allies we meet along the way. 

Characters: 

Rose Sorenson: Our ever optimistic protagonist. Rose looks on the bright side, but more importantly, she’s driven. While other Bendy protagonists have endurance and magical powers to help them along, Rose has her wits and a strong imagination.

Ollie Sorenson: Rose’s little brother who has been through a lot. Ollie is a good kid, he means well, but he’s getting to an age where his whole world is changing. As his sister embarks on this heroic quest, he’s feeling like he’s brave and strong enough to take on the cycle and lend a hand too. This may get him into more trouble than he bargained for. 

Dot Lastname: Former writer at Joey Drew Studios, Dot is a curious soul who lost everything. Having never been able to find her friend, Buddy Lewek, she’s harbored so much guilt. Making sure Joey can never hurt anyone again would leave her satisfied, and being able to locate her lost friend would be even better. She agrees to help Rose one more time, in the hope that maybe, just maybe, Buddy is still alive. 

Buddy Boris: Since getting dragged down by the hands of the ink demon, Buddy has found himself trapped in the body of Boris the Wolf, struggling to maintain control. Upon encountering studio newcomer Rose, his memories are hazy. But the more she tells him stories of the past, the more he starts to remember. Buddy can’t speak verbally, but he can communicate through drawings and writing on the wall. (Need to have a moment where he hears Dot through the tape recorder and recognizes her, gotta have it be a little heartbreaking).

Evan: A former employee of Joey Drew’s and Gent, Evan is a big grump with big dreams of innovating the world. He’s a foil to Rose’s endless positivity with an air of irritation, but he means well. Except for trying to dismantle and steal the ink machine, that was a bit foolish and morally gray. Evan met his fateful death at the hands of the ink demon in Fade to Black, but as other characters have shown us, those who die in reality can end up reborn in the cycle. Where is Evan, and what has he become? Is there a way to bring him back home? 

Archie Carter: A mysterious Englishman who ended up as a lab rat for Gent, Archie is desperate to put an end to their reign of terror. Having gone from being suspiciously not human to a faceless ink creature, Archie sacrificed himself for Rose not once, but twice. He’s already encountered so many horrors in the studio. What kind of state will he be in if Rose finds him again?

The Projectionist: The monster that was once Norman Polk has caused a fair share of problems within the cycle, but perhaps he’s not as monstrous as he seems. After all, he’s only defending what’s rightfully his: a pile of ink hearts. (It could be fun to have him as a monster, then have Evan help repair his speaker so he can communicate with the group, showing he’s more confused than he is hostile.)

There are others I'd like to include of course. There's people like Jacob from DCTL that would make a fun ally, might be indulgent and put my “Abby Lambert is a perfect Alice” theory to good use. Depending on how far along Joey is, maybe there's an early attempt at Audrey somewhere in here. Maybe there's Wilson! There is a very small chance of Wilson, it's not likely, but I'm considering it. Twisted Alice showing up? Definitely considering it given the timeline would be fun to play with.