Closing as not a bug. Look in the javascript console of the emulator: it's returning 'OUT_OF_MEMORY' errors, which appear to be due to your use of very large images. For example you have a 2560x1440 image which firstly is over the maximum size of 2048x2048 that some devices support, and further is completely a waste because it's all a solid color, so you could have used a 32x32 sprite and just stretched it up and saved 99% of the memory. There are several other very large images. Your project does not appear to use too many images so it does seem odd that it would be reporting out of memory already, but perhaps it's more memory constrained than you think. If you think there is still a problem it would be best to contact Microsoft about it since the memory error is being reported by Windows Phone and is not to do with the C2 engine.