Which part would you have difficulties with?

Is there a specific reason why you use physics behaviour for this and not bullet?

Of you were to use bullet behaviour, I would just use rotate clockwise or counterclockwise, depeniding on up ot down pushed..

I'd put the lifebar objects in a container with the object, position an pin it and set it's width depending on an instance variable..

Not sure what you mean by picking a pathfinding object type, though..

I guess you'd only have to change the moveto example shipped with construct a little bit to get the basics of this..

If you are trying a cross-domain request:

(This is about Ajax, but I believe the same applies to "load from url")

Making AJAX requests cross-domain or in preview

By default, browsers block AJAX requests across domains. This means, for example, a game on scirra.com can request other pages on scirra.com, but cannot request pages on facebook.com. This is an important security feature of web browsers (it is not specific to Construct 2 or its AJAX object).

Also, when previewing in Construct 2 the game runs on localhost. This counts as a different domain to the rest of the internet, so typically AJAX requests to any web page will fail during preview, unless the server explicitly allows cross-domain requests.

If you want AJAX requests to your server to work from any domain, or in preview, you can configure it to send the following HTTP header:

Access-Control-Allow-Origin: *

This will enable AJAX requests from any domain, but you should still be aware of the possible security implications of this. For more information on cross-domain requests see HTTP access control on MDN.

second of all I don't even see how that would help.

It would help with comparing the variables, which was your question, right?

If the family doesn't have variables, there is nothing to compare..

What events/actions are you using for this?

Tutorial

Another tutorial

Did you know the tutorial section of this site has a search function?

Some people try using it to find things..

I'm not sure exactly what you are trying to do and what part of that isn't working the way you expect it to..

Something has to stop for three seconds and start again?

What events/actions are you using for this?

If you could share your events, this could be easily checked..

You said your blocks weren't created, but your blocks are being created just fine..

They aren't visible because your background is in front of them..

So if you move your background to layer background, everything works..