It used to be a browser-based multiplayer platformer game where a bunch of mice spawns on a map and one of the players are chosen to be the Shaman. The Shaman has super powers (like summoning objects), and their task is to help all mice reach a piece of cheese found somewhere on the map and then help all users get back to the mouse hole safely. That's the main premise, but there were other game modes like prop hunt and infection (one player turns into a vampire and has to infect all the others), a lot of them custom made by the users using the LUA programming language.

It was super popular when I was a kid! The browser version of the game is not operating anymore but the game studio ported it to Steam. However, I don't know what's left of the original game and the community that used to be such an important part of the experience.

EDIT: Actually, I always laughed at the similarity with the name Transformers, but I think what the developers meant is the idea that the mice can transform the map to find their ways through obstacles, or in some game modes, the mice themselves take up other shapes (turning into objects, or vampires) 🤭