As this model is a LyCORIS, it requires the appropriate extensions to be used.
LyCORIS model intended to replicate the official 2D art style of the Splatoon series of games. It's a bit quirky so it could probably use another pass or two, but I've liked the results I've gotten so far so I thought I could share it now.
Trained on official artwork. Version 1 mostly used artwork from Splatoon 2, so in theory that should be what it looks closest to. It kind of seems to go off in its own directions though...
Seems to work pretty great on a weight of 1.0, and was pretty alright on the small handful of different checkpoints I tested, but you may have to experiment yourself a bit.
Interestingly, this model seems to have some sort of secret double life -- if used without prompting it with specifically Splatoon-related terms (splatoon, inkling, octoling, etc), it will make images of more non-specific anime characters in a similar but not identical colorful painted style. I haven't completely tested this side of it yet, but it's kind of neat.
This is intended for getting some semblance of the art style first and foremost, and isn't made with the intent of replicating any specific named characters from the games. There are other LORAs for that already, though there may be some issues in getting them to mix well together. My testing has been a bit varied on this.
This model struggles somewhat to distinguish between glasses and the mask on Inklings, so if trying to generate Inkling characters I would typically recommend putting "glasses" in the negative prompt to prevent it from looking weird.
Annoyingly, this problem is way worse on male Inklings, and putting glasses in the negative prompt doesn't seem to work, at least not as well.
If prompted with a Splatoon-related term, the model gets an odd obsession with putting suction cups on people's heads, which can be a bit annoying if you're trying to make a picture of anything that isn't an Octoling. Despite being tagged for, putting "suction cups" in the negative doesn't totally fix this by itself -- I found a slight amount of success with some combination of "suction cups, octoling, marina, object on head", but it's definitely a weak point.
The model also tends to give characters random straps around their shoulders -- this can be quelled somewhat by putting "ink tank" in the negative prompt. You could also try something like "backpack" if that doesn't work out.
Sometimes the model will give characters extremely short legs for some reason, which looks very doofy.
I do not endorse or condone this model, or any other models I may make, being used to deceive or defraud, or to create any kind of illegal content. Please be responsible and not awful.