One interesting undertale mlp fanfic might be those that combine the unique characters from both universes in unexpected ways. For example, a story where Sans from undertale meets Twilight Sparkle from MLP. They could exchange their different views on magic, with Sans' more comical and laid - back approach contrasting with Twilight's studious and rule - following nature.
Another place to check is FanFiction.net. There are many talented writers who post their undertale mlp fanfics there. However, be aware that the quality can vary widely. You might have to do some sifting through to find the really good ones. Look for stories with high ratings and lots of reviews as they are usually better.
Well, first of all, a good integration of the two universes' elements. For example, seeing how the Undertale battle system could work in the Equestria setting. Also, the characterization is key. The ponies should retain their core personalities while interacting with Undertale characters. Like, Twilight Sparkle's thirst for knowledge should be shown when she encounters the mysteries of the Underground.
Another good one is 'MLP - Undertale: A Tale of Two Worlds'. This fanfic delves deep into how the values and cultures of both the My Little Pony and Undertale worlds could coexist or clash. It has detailed descriptions of the crossover elements, like how Fluttershy might befriend a Flowey - like character, which makes for a really engaging read.
The unique feature is the blend of two very different universes. My Little Pony is all about friendship, magic, and a colorful, happy world, while Undertale has a more complex and often darker undertone with its themes of choice and consequence. In MLP Undertale fanfics, you see how these contrasting elements can come together. For example, a pony might face the moral dilemmas that are common in Undertale, which is quite different from the usual pony adventures. This creates a whole new kind of story that can be both exciting and thought - provoking.
There's also 'MLP - Undertale Crossover: Equestria Underground'. In this fanfic, the author does an amazing job of bringing the unique charm of both franchises together. It features some really creative interpretations of how the MLP and Undertale worlds would blend, with engaging dialogue and exciting action scenes.
One idea could be that the ponies from MLP end up in the Underground world of Undertale. Maybe Twilight Sparkle could use her magic to interact with the magical elements in Undertale, like the SOULs. Another idea is to have Sans and Papyrus meet Fluttershy. Papyrus would be all excited to show off his 'coolness' while Fluttershy might be a bit shy at first but then they could become friends over their love for cooking (Papyrus loves making spaghetti).
Twilight Sparkle from MLP is often a popular choice. Her intelligence and powerful magic make her a great character to interact with the complex world of Undertale. In Undertale characters, Sans is also quite popular in these crossovers. His laid - back but mysterious nature can create interesting dynamics when paired with the ponies.
Well, in 'mlp meets undertale fanfiction', there could be crossovers of characters. Picture Fluttershy befriending a shy monster in Undertale. Her kind nature could help the monster come out of its shell. Also, the magic system in MLP could blend with the combat or determination - based mechanics in Undertale. It might create new ways for the characters to overcome challenges. For instance, Twilight Sparkle's magic could be used to solve some of the puzzles in the Underground in a different way than the normal Undertale characters would.
The characters could interact through a portal that connects their two worlds. For instance, Applejack could enter the Undertale world and meet Toriel. Applejack's honesty and hard - working nature might impress Toriel, and they could exchange stories about taking care of others (Applejack on the farm and Toriel with the lost children).