Sorry for taking so long to respond, hopefully you found the answers by now, but if not:

To replace buttons with images, you are going to have to make new sprite objects and just copy all of the actions that the buttons were doing to it (there might be an easier way, but I don't know of it).

To make a button play a sound when clicked, you have to add the audio and mouse (or touch) objects to your project. Then add the event "on click object" (set the object to the button), and then add the action "play audio". You will have to import a sound first though before it will appear in the actions drop-down options.

And I'm not sure about the pick problem (I'm terrible as using the pick actions as well), maybe post another thread about it? Or there might be something about it elsewhere on the site.

This is a beautiful game, and I'm sure there is definitely a market for it somewhere. It would probably do better as a packaged exe being sold though, and there are tons of people out there who love to play these types of games but a very limited supply of titles.

I would check out this article on how old genres can be used by indies to establish themselves (http://www.gamasutra.com/view/feature/135065/principles_of_an_indie_game_bottom_.php).

And then try and get it your game up on some of the online game stores on this page:

pixelprospector.com/the-big-list-of-online-game-stores

You could try writing a batch editing script in a photo editor (if pixel = black & is beside a transparent pixel, then make it transparent). I'd look on google to see if you can find a tutorial on it for GIMP or whatever photo editor you use (nothing like this is built into Construct 2 I don't believe).

You can definitely do all of that with Construct 2.

Parts 1 & 2 are the most simple, as all you have to do is create some local variables for each statistic or value that you want to track (I typically do this by creating an object in the layout view and then adding one from the list on the left), and then after each fight, you add the experience that they got, see if they leveled up, and if they did, then give them X equipment.

You're going to need to use something like AJAX to connect to your server though and store the data (here is a tutorial on that scirra.com/tutorials/61/ajax-example-with-construct-2). Once you retrieve the data though, you just have an automated system run through the fight (typically a loop until one player is dead, with whichever attack patterns and calculations you want in between).

Hopefully that helps!

I'd also suggest gamasutra.com and Casual Games Connect (you get it free if you're a member of the Casual Games Association, which is free to join as well: http://www.casualgamesassociation.org).

I was wondering if anyone knew of a way to allow scaling put to cap it off at a certain amount (such as 2x or something similar)? For example, if I made a game at 480x320 and allowed scaling, I might not want it to go above 960 x 640, because the quality of the graphics quickly deteriorates. Any ideas?

The best way that I could think of to accomplish that effect would be to create an invisible sprite with the scroll to behavior, and then have that move on every tick. Then I would check if the player is on-screen each time a movement is made, and if they aren't, then destroy them.

Hope that helps!

I would just do an on collision that pushes the first object back.

Example:

if block A collides with block B, then push block A back in the direction it came from

— It looks like that applies to the standard license, but if you purchase the extended license ($49) there aren't any limits. So essentially, just buy the $1 and if you're lucky enough that you're getting close to selling 50,000 copies, then just buy the extended license.

This thread should help you out:

scirra.com/forum/making-a-quiz-game_topic50656_post319359.html

I believe it has an example of a quiz game that you can download in one of the replies as well.

Do you want to use webcam controls (i.e. the actual camera) or tilt controls (moving the device). The latter is simple with Construct (I think there is a tutorial that comes with it that shows how that is done), but I don't believe Construct handles using a webcam at this time. If you want to do webcam controls, you will have to add them by hand, and the simplest way that I can think of doing that is by taking advantage of a library like PhoneGap.

You could definitely do something like that with Construct 2. Essentially all that it's doing is running through a giant list of math permutations and adding the ones that equal 24 to an array, which it later displays.