Reaching the end of this adventure takes about five hours or so, but it feels a lot longer. Collectibles and optional objectives attempt to offer some incentive to return to these bizarre dimensions, but the crushing repetition and complete lack of challenge mean that just finishing each area once is way more than enough. Phineas and Ferb: Across the 2nd Dimension is an uninspired game that doesn't do its inventive heroes justice by a long shot. Read more