In the game of Transformice, the user is presented with a large GUI that has a variety of functions.
 Information Bar
The Information Bar is positioned at the top of the room and informs you of the time left to complete the map, the amount of mice in the room, who the current shaman is and which room you are in.
The Information Bar has other uses to, for example, in Map81, the time counter helps the mice and the shaman because at 01:50, the gravity reverses. This gives the mice and the shaman the knowledge of when the gravity will be reversed and how much time they have left to build a shelter or die.
 Bottom Bar
The bottom bar houses a number of other features, listed below.
 Chat Box
The Chat Box is the most active part of the bottom bar. Not only can registered users communicate with each other in this window, but it also displays information such as cheese recovered under a shaman, who your soul mate is on partner maps, who the current shaman is, and whether you won ("Cheeeeeese *-*") or lost ("No cheese for you ! ^_^") a map.
 Players List
Next to the chat box, you'll find a list of people currently playing in your room as well as their current overall scores. Generally speaking, the people at the top of the list will be next to be the shaman, but there are occasions where people continue to gain points without becoming the shaman. It also seems random whether or not the next map will have two shaman or not regardless of how close the top scores are.
The Leader Board shows the order the mice that completed the level (obtaining the cheese and proceeded to the hole) finished in and which places they had been in. It is similar to the rankings tab.
 Button Dialogs
As mentioned above, there are also buttons above the player list. These buttons do a number of things.
These buttons are duplicates of existing commands, but are there if you want to use them instead.
 Blue/Yellow Feather
By clicking the shaman feather to the right of the animation buttons, a dialog box opens, allowing you to turn Hard mode on/off, and configuring your totem. This feature is only available to players that have over 1,000 saves.
Clicking on the help tab shows the in game instructions, indicating the movement controls and various shaman keys.(Note:This emote doesn't repeat)
The Menu button opens up into a number of options.
This opens up your friends list. Here, you can keep track of folks you've added to your friends list (with the /friend command) as well as message them or follow them to whatever room they're in. You can also remove your friends here.
You can purchase cute accessories for your mouse in this window such as hats, neckwear, or even a spiffy moustache.
 Map Editor
The Map Editor is a feature that lets you create your own Map - with any of the things "Official" maps have. It is then could be published to everyone, and will be spawned randomly(You can only send a map for 40 cheese.).To do this, you must valadate the map by completing the map.
To be able to export (publish) a map, you must have collected at least 1000 cheese. This was added to keep the standard, in hope of that experienced players would make better maps.
You can communicate with the masses with this.