Habbo Commands are words or phrases that when said in client, an action will be performed.
This is an add on the the previous guide made which can be found here: Chat Commands: Chat away!

NON-HC
:screenshot - Takes a screenshot of the room you are currently in and saves it to your computer. The screenshot will exclude the user interface as seen below.

:sign # - This allows your habbo to hold up a sign when you replace the # with numbers [0-17] where:
0-10 are the numbers respectively,
11 - Heart
12 - Skull
13 - Exclamation Point
14 - Football
15 - Smiley Face
16 - Red Card
17 - Yellow Card

:zoom # - By replacing the # with a number, you can zoom in on your Habbo screen further. This is especially handy in mazes when you're required to name a furni. #mazetipswithsally

:iddqd - Flips the room upside down. Useful for mazes if you drag the room to the sides of the screen, you will be able to see hidden furni.

: x - If this is said after clicking someone, their Habbo Name will be displayed instead of x. This only works at the start of the speech bubble. 

:sit / :stand - Allows your habbo to sit or stand respectively.

:hidemouse - Hides your mouse cursor in client along with the white square that appears when you hover over the floor. To undo this effect, say the command again.

:yyxxabxa - Gives your Habbo a lightsaber.

HC ONLY
:habnam - Enables the habnam effect on your habbo! #PartySafe

:moonwalk - Enables the moonwalk effect on your habbo causing you to moonwalk backwards. Useful in grocery list games where you need to get an item and your habbo is facing the other way! 

:jump - Causes your habbo to jump once. 

@colour@ - Where colour can be replaced by the following: [red/blue/green/cyan/purple] to change your Habbo's chat colour.