It seems to you that you lack the price and average rating.
I have no idea if there is a clear definition of what is required and what is not, but adding these two solves the problem for me.
You may also consider adding additional information such as OS and version.
Here you can see a working example.
<dl> <dt>Updated:</dt> <dd><time itemprop="datePublished">September 29, 2011</time></dd> <dt>Current Version:</dt> <dd itemprop="softwareVersion">1.1.1</dd> <dt itemprop="operatingSystems" content="iOS">Requires iOS:</dt> <dd>4.0 and up</dd> <dt>Size:</dt> <dd itemprop="fileSize">14.2 MB</dd> <dt>Price:</dt> <dd itemprop="offers" itemscope itemtype="http://schema.org/Offer"> <span itemprop="price">9.99$</span> </dd> <dt>Average Rating:</dt> <dd itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating"> <span itemprop="ratingValue">3.6</span> (in <span itemprop="ratingCount">931728</span> ratings) </dd> </dl>
PS: I'm not an expert on this topic, I just edited the Cut the Rope page and continued to test until the code was minimal, but it still worked.: P
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