They do what they say they do, but I'll explain them anyway!

Inverted of makes positive numbers negative, and vice versa.
Squared of multiplies the inputted number by itself. ex. squared of 2 = 2x2 = 4
Mouse down on checks if the mouse button is down on a specific sprite.
Delete all clones deletes all clones, obviously.
Delete latest clone deletes the latest clone created (not the current one), and vice versa.
The play animation on sprite block plays a pre-made animation, such as explode, break, pop out, etc.

You cannot make lists of unrelated suggestions
Inverted is just multiplying by -1.
For squared, you can just do:

Delete all clones can be done since clones receive broadcasts:

And you can detect clone id to detect if its the first/last clone:

Edit:
For the mouse down one:

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Before making a new topic, please check out the following:

• The Official List of Rejected Suggestions. If your suggestion is in this list, please do not make a new topic about it, as it will not be implemented anyway.
  
  
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