The 3DS eShop is simply on fire as of recent, and this week is no exception. The latest downloadable goody to come our way is Ketzal's Corridors , a puzzle adventure good enough to finally justify pulling yourself away from Pushmo . Seriously.

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The game is essentially third person, on-rails Tetris - and it's as crazy/frenetic/cool as you'd imagine. Similar to the WiiWare title ThruSpace, Ketzal's Corridors puts you in control of different-shaped blocks (each block is a different "guardian" with a different name and shape). Using the face buttons to rotate the block and the D-Pad or Circle Pad to maneuver it, it's up to you to wrangle your guardian into just the right shape and position to slip through the walls of the ancient ruins it's scrolling through. There are also tall towers you can only scale by matching your block to the silhouette presented before time runs up.The fast-paced action of scrolling through the levels in 3D, especially when you hold down L to speed things up, is absolutely thrilling (and no, the 2D videos in this review don't do it justice). The 3D effect not only makes those parts far more exciting, but also looks gorgeous, and makes for an experience you could only find on your 3DS. The endless level alone - where you go as long as you can before slamming into a wall, all while the level progressively speeds up - would be enough to keep any puzzle enthusiast coming back for more.But there's so much more to Ketzal's Corridors. The nearly 100 single player levels present different ruins to zoom through or towers to scale, as well as a variety of different challenges to test your skills. From moving obstacles to tight time limits to solid walls that require you to perfectly (and quickly) match the shapes it contains to move forward - the sheer number of different ways to play and enjoy this game is incredible. The highly addictive nature of Ketzal's Corridors is only further helped by the incentive to collect hearts within the levels, perform tricks and beat your best scores and times.As if that weren't enough, the game has an excellent multiplayer mode. One option lets you share your system with a buddy in a shape-matching race, one person using the face buttons to rotate their block and the other using the D-Pad. You can also play locally in a race through the ruins or to the top of a tower. Both the single and multiplayer aspects of Ketzal's Corridors are incredibly well done, and enough to keep any gamer busy for a very, very long time. The beyond silly story (you heard correctly, there's a story) is icing on the cake. It involves the guardian block characters you play as, and is told at various points via painted, 3D hieroglyphics popping off stone walls. The game didn't really need a story, but it's a nice touch nonetheless.