Ximad is now offering a FREE version of their popular game Brain Cube. The concept is a simple one, you need to navigate the block through the mazes, and dodge the traps and tricks. Then you are required to have the block flip into the portal style square. Took me a few tries to get a hang of it, and once i did, it became addicting. You can find the free version in AppWorld, and the paid version in AppWorld or the BerryReview Store. Please note, that the free version is ad supported, and will ask you to upgrade often, but at the price of $0.99 in AppWorld or $1.99 in the BerryReview Store, it is worth it if you enjoy this game.
Here are some more screenshots: