thesecretweapon: I'm pretty sure it's already supported with CocoonJS.

What about AppMobi / directConvas?

I've already read that :) . I'm not asking about cutting out the background of the sprite. I'm asking about making a transparent image in Photoshop and saving it as PNG so that it saves the alpha channel.

Then importing it in C2. Will it affect performance? <img src="smileys/smiley1.gif" border="0" align="middle" />

What about iOS/Android? Will there be offline file saving for them?

I'm making a mobile phone game and want to know if I should be concerned about whether to use transparency or not.

If I make the .PNG file transparent using Photoshop, will it also affect performance?

I found the old backup capx file in Recycle Bin. Thank god. I've restored it. It feels like I've been given a second birth.... <img src="smileys/smiley4.gif" border="0" align="middle" />

Now, I'm keeping the backup file on a different folder, in a pendrive and also on dropbox. <img src="smileys/smiley36.gif" border="0" align="middle" />

Hi Wink!

Thanks for responding. But it didn't worked. :(

It had no previous versions.

I was using Construct 2 when I got bluescreen of death and my computer restarted. Now, whenever I try to open my .caproj file I get this error:

<img src="http://i.imgur.com/CAee2.jpg" border="0" />

I tried renaming MyProject.capx.backup1 to MyProject.capx. And tried opening it. But I get this:

<img src="http://i.imgur.com/qMFv8.jpg" border="0" />

Please, help me. I've worked really hard on this project. And I'll literally burst into tears if it won't fix.. :

It's not disabled for free edition users, it should in fact always be enabled without being able to turn it off. However we had issues with the start page crashing some people's computers, and weren't able to fix it since it was a rare and difficult to reproduce problem. Instead if Construct 2 detects it crashed last time it ran it will disable the start page. Unfortunately in the free edition the option is still disabled so you can't turn it back on again... you could try just pressing the 'Start page' button on the ribbon to get it back.

Yayy! I got the start page by clicking on "start page" on the ribbon. Thanks Ashley!

C2 was working perfectly before. But today when I opened it, it had no startpage. Now, when I go to preferences, I see "show start page" unticked and greyed out with written "licensed only".

So, is the start page disabled for free users? Why?

Yes, i noticed the differences between App Lab and XDK, when i used Test Anywhere on one of my games with my iPod Touch 4 and it shows black screen, i had no idea why.

Also, i exported with directCanvas

I've the exact same problem.

Are you using some custom plugins? Directcanvas sometimes doesn't like them.

Yeah, I am. Thanks for letting me know. I'll remove them and let you know if it's works

EDIT: OMG! Thanks, it's working now!

While I'm here, I have another question:

1. If my main aim is to develop the game for iPhone/Android devices, Is it bad to use big sprites? (I created big sprites so that it looks good on retina display iPad's too) Will it reduce my performance?

2. My tiled - background image turned into a white image. I know that appMobi is in beta. But to those who've created their games using appMobi, is there a way to get around this?

3. What are some fundamental suggestions to make a game that runs smoothly on mobile devices?

But how does it works well for some people and not for others?

Is there a work around this?

Is there any other tools like AppMobi which can boost performance?

CocoonJS is not an option because it needs Mac to test on iOS and needs a paid version of Construct 2.