Reminds me of Monument Valley, the famous puzzle platformer game that looks conceptually similar to this.
https://store.steampowered.com/app/1927720/Monument_Valley/

https://store.steampowered.com/app/1927740/Monument_Valley_2/

stalker. double your kung foo

I first watched a part of the video in your quoted tweet before I read what you wrote and I thought "AilliA made some AI video of herself or monerochan in a videogame" because of the resemblance. Then I read the name of the account you were retweeting, and got more confused. "Wait its not an AI video. AilliA is really making a game where she is the protagonist..." And then I finally read your post.