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From Robot Invader:
Wind-up Knight by Robot Invader is a high-end, action-packed, 3D side-scrolling adventure game, and it's here to show you how games are supposed to be played.Guide your Wind-up Knight through devilish levels--over 50 in all--to rescue the Princess from the clutches of the evil Black Knight. Run, jump, roll, and slash your way to victory. Not your typical runner game, Wind-up Knight is the type of challenging game you've been missing in your life.Here are some bullet points all up in your grill: Over 50 soul-crushing levels in four unique worlds. Intense platforming action: double jumping, wall sliding, dive and roll, just to name a few cool moves. Universal app with iCloud support and Game Center achievements! New weapons and armor unlock as you play the game. Use the Armory to equip items and customize your character! Original soundtrack by Josh Whelchel.Wind-up Knight has been designed from the ground up by Robot Invader to provide a console-level experience for your iPhone, iPad and iPod Touch. The Princess hasn't got all day, download it now!Note: if you are mega awesome it is possible to unlock all the levels in this game for free. If you prefer to pay a few bucks to unlock levels, that's cool too.Note 2: If you bought Wind-up Knight before its price was changed to FREE on February 22, 2012, make sure to beat the first level before updating to this version so that the content you paid for remains unlocked._______________________"A success story from start to finish...Wind-up Knight has quickly skyrocketed to my list of favorite iOS games of 2011." - Tara Long, DESTRUCTOID"Wind-up Knight is the cream of the crop of its genre. It's gorgeous, runs smoothly and is unfailingly punishing. But it's never unfair, and that's why I love it. 5/5 " - Nissa Campbell, TOUCH ARCADE"Wind-Up Knight is a game I have no problem referring to as a Must Play. 4.5/5" - Rob Rich, 148APPS