This is basically a suggestion that is pretty self-explanatory, combining the when flag clicked and when sprite clicked blocks together.

Mockup:

Whoops, never mind. I just checked.
This would be quite annoying, in my opinion. Scrolling through drop downs on mobile isn’t very fun.

TheAutocorrectingCat wrote:

Doesn’t the “when this sprite clicked” hat block have a drop-down already?

No, it doesn’t.

What purpose would this serve?

Wouldn't it just make it take longer to get whichever block the default was, while also hiding the non-default option from new users who haven't found it yet?

No support. I don't think this suggestion is necessary. It's only 2 blocks, and it could make it more confusing. One quick note though: it should be

when [this sprite v] clicked :: events hat

and

when [green flag v] clicked :: events hat

(the word “clicked” should be outside the dropdown)