Just what it sounds like. I would love you forever if you could make a pet Kyubey. As an example (I am almost certain these are not the dimensions of SDV sprites), his sprite sheet from Grief Syndrome:
Aw man, I was gonna try to do this but I realized that the spritesheet you've provided only has Kyubey walking sideways. So he'd pretty much just oddly float forward :/ I guess I could give pixel art a try...
Awh! It's okay, I was poking around modding threads where people were discussing the sprite sizes the game requires, and I'm pretty sure the Grief Syndrome sprites are HOMGTOOBIG anyway.
Yeah, they're way too big, and resizing would kill the quality. So let's hope there's a good pixel artist around here!
Since I assume no one else is doing this, I tried. Haven't actually tested it in-game though, so it might look a bit weird. I've never actually watched the show, but I thought I'd use a "Wanna make a contract?" pose instead of the meowing one Oh, and he's gonna sleep a lot. Because I'm lazy. Here's the download link, in case you like it. As usual, back up your cat.xnb file and just extract the archive in your game folder.
Ooops, sorry about that. This time I didn't bother with a grid, so I didn't check whether the entire tail fit. Here's the hopefully fixed file (will also edit the link in the other post).