One idea could be a crossover with 'Alice in Wonderland'. The protagonist of Little Nightmares could fall through a distorted mirror and end up in Wonderland. They would encounter the strange creatures there, but with a Little Nightmares' twist of horror and mystery. For example, the Cheshire Cat could be a more menacing figure, with a dark aura and a creepy smile that reveals sharp teeth.
One idea could be a crossover with Hollow Knight. The protagonist of Little Nightmares could find themselves in the Hallownest, facing the strange and often menacing bugs there. The dark and eerie atmosphere of both worlds would blend well.
First, decide on the two universes you want to cross over. For example, if it's Little Nightmares and 'Silent Hill'. Then, think about how the main character from Little Nightmares would end up in the Silent Hill world. Maybe they get lost in a strange fog and suddenly find themselves there. Next, introduce the elements of Silent Hill, like the rusty and desolate environment, and start building the conflict. Will the character be hunted by the creatures from both universes? That's how you can start.
First, decide which two universes you want to cross over. For example, if it's Little Nightmares and Alice: Madness Returns, study the lore and characters of both. Then, create a scenario that brings the characters together, like a strange portal opening up.
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.
A cool plot could be a character swap. Imagine Frisk from Undertale in the world of Little Nightmares. Frisk's determination would be put to the test in the nightmarish setting of Little Nightmares. They would have to face the Janitor and the Twin Chefs just like Six does. Meanwhile, Six could be in the Underground, dealing with Flowey and Toriel. The contrast in the two worlds' aesthetics and challenges would make for an exciting story.
The story of Little Nightmares 1 is centered around Six. She finds herself in The Maw, which is a place of horror. The Guests on The Maw are not just normal people but rather these huge, gluttonous beings. The Janitor is always lurking around, his long arms reaching out to grab Six. Then there are the Chefs who add to the danger. Six's main goal is to get out of this place alive. Along the way, she discovers secrets about The Maw and has to overcome numerous obstacles that are as much psychological as they are physical.
The story of Little Nightmares 2 is about Mono and Six. They journey through a very strange and often terrifying world. They face many grotesque and dangerous enemies. Mono has to help Six throughout their adventure.
In Little Nightmares 1, the story follows Six as she tries to escape The Maw, a very creepy place full of grotesque creatures. She has to deal with the Janitor, the Twin Chefs, and the Lady. In Little Nightmares 2, Mono is the main character. He meets Six and they go on a journey through a world filled with threats like the Hunter. The two stories are connected, showing a dark and disturbing world where the children have to struggle to survive against these nightmarish adults.
The story of Little Nightmares is set in a very strange and dark world. It mainly follows the journey of a little girl named Six. She has to navigate through a world full of grotesque and terrifying creatures. The environment is filled with various threats and challenges. For example, there are long - armed janitors who try to catch her. The game creates a sense of dread and unease as Six tries to escape this nightmarish place.