The character designs could blend in interesting ways. Take Alice Angel from Batim. She could be given a more Undertale - inspired dress. Instead of her normal white dress, it could be a dress with a pattern that resembles the Delta Rune. Her halo could also be a different color, like purple, which is a color often associated with magic in Undertale. On the other hand, Toriel from Undertale could be depicted in a more 'inky' form if she were in the Batim world. Her fur could have a wet - ink look, and her robes could be tattered like the clothes of the characters in Batim who have been through a lot in the studio.
One creative storyline could be where the characters from Batim end up in the Underground of Undertale. Maybe Bendy and his crew are mistaken for strange monsters by the Undertale characters at first. They then have to navigate through the various areas of the Underground, facing challenges like the puzzles in the ruins or the battles in Snowdin, all while trying to find a way back to their own world. Another idea is that the Ink Machine from Batim somehow gets connected to the Determination power in Undertale, causing all sorts of wacky and unexpected interactions between the two universes.
Definitely. A good place to start looking is on fanfiction.net or Archive of Our Own. Look for ones with high ratings and good reviews. There are fanfics that explore how the different art styles and story themes of the two franchises can co - exist. Maybe a story where the protagonists of both worlds have to team up to defeat a common enemy that somehow combines the evils of both their universes.
The color palette of both can be combined. Little Nightmares has a lot of dark, muted tones, while Undertale has more bright and distinct colors in some areas. In the crossover, you could have the dreary halls of the Maw tinted with a bit of the purple glow from the Underground. For the characters, Six's ragged clothes could be contrasted with Frisk's bright blue and purple striped shirt. You can also blend the spooky nature of Little Nightmares with the somewhat comical but also menacing aspects of Undertale, like making the Janitor have some of Sans' laid - back but dangerous attitude.
The exploration of morality is a theme that can be found. In Undertale, morality is a huge part of the gameplay with choices between mercy and killing. In BATIM, there are also moral dilemmas in a sense, like whether to trust certain characters or not. Fanfics might combine these moral aspects, having characters from both face new moral choices in the crossover world. Also, the theme of discovery is there, as characters discover the new rules and beings of the other's universe.
Frisk might be curious about Bendy. They could approach Bendy with an open mind, trying to communicate. Bendy, on the other hand, might be cautious or even a bit scared at first. After all, Frisk is an unknown entity in his world. They could start by simply observing each other, with Frisk making small gestures to show they mean no harm.
Ruby could get some Jojo - style flair in her design. Maybe she'd have a more flamboyant cape, like some of the Jojo characters have with their long coats. Her scythe could also have some more intricate details inspired by Jojo weapon designs. Weiss might have a stand - like ornament on her dress, and her hair could be styled in a more elaborate way similar to some of the Jojo female characters.
Frisk and Dave Strider would be an interesting pairing. Frisk is all about kindness and determination in Undertale, while Dave is this cool, sarcastic guy from Homestuck. Their different personalities could lead to some really fun interactions, like Dave trying to be all cool while Frisk just goes about their business of being kind to everyone.
You can blend the two worlds by having characters from each world interact. For example, the ninjas of Naruto could meet the Berserkers. They might initially be at odds, but then find common ground in their fighting skills. The ninjas' use of chakra and jutsu could be compared and contrasted with the Berserkers' brute strength and rage - based powers.
To write this kind of fanfic, start with a strong hook. Maybe start with Steven waking up in the Underground or Frisk arriving on Earth near Beach City. Then, build the story gradually. Show how the characters react to the new environment and each other. Don't forget to add some action and conflict. It could be a battle between the Gems and some of the more aggressive monsters from Undertale. And make sure to stay true to the essence of both universes. Don't change the core personalities of the characters too much. This way, fans of both shows will be able to enjoy your fanfic.
Garroth and Boris would be an interesting pairing. Garroth, with his knight - like qualities of loyalty and protection, could befriend Boris, who is often in need of protection in the BatIM world. And then there's Katelyn and Alice Angel. Katelyn's feisty and strong - willed nature against Alice Angel's more complex and somewhat tragic character. They could have some really intense and thought - provoking interactions, especially if they start to understand each other's motives and backgrounds in this strange crossover of two very different fictional universes.