Even without the downloadable level packs, HueBrix brings a fresh face to mobile puzzle games for a head-scratching good time.

Players can also create and share their own custom puzzles, though the feature is limited to sharing with your Game Center friends list. The downloadable levels add new puzzles in both the easy and medium difficulties, as well as opening up the challenging 'hard' and 'insane' difficulty levels. It's a sizable package of enjoyable puzzles already, but even more can be found thanks to an additional 17 level packs through in-app purchases. There are just over 100 puzzles included with HuBrix, spanning a tutorial and the 'easy' and 'medium' difficulty settings. New elements are frequently introduced to increase the challenge, such as alleys to let colors wrap from one side of the board to the other, or squares that only let you pass through them in one direction. It sounds simple, but can become deviously clever in a hurry as you struggle to figure out how to best allocate the available space. Players trace outwards from colored blocks, with the goal of filling all empty space with the colors at their disposal. HueBrix is a delightful and refreshing mobile puzzle game. > Download 'Super Hexagon' from the App Store The quick restart allows the micro-game rounds to turn into lengthy play sessions, driven by the compulsion to top your last run. When players do slip up - and they will frequently - a single tap jumps right back into the game. It isn't uncommon for a round of the game to last only a few seconds, with runs lasting 30 seconds or more feeling like monumental achievements.

Super Hexagon is perfectly designed for mobile. The game bluntly and honestly calls its lowest difficulty setting 'hard', only getting more challenging from there with two additional settings. This core idea is taken to dizzying heights as the entire screen constantly rotates and pulses with the music. Players rotate a tiny arrow around a hexagon in the center of the screen, attempting to dodge sides of the geometric shape flying toward to the middle from all directions.

From the creator of VVVVVVV comes the devilishly difficult Super Hexagon.

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