Welcome to the weekly iPhone Quality Index (Qi) games round-up, giving you the LOWdown on the HIGH scorers every Friday on these illustrious pages.

As you may already know, Qi trawls the web for iPhone game reviews from the world’s most respected online and print sources.
Qi then applies its own magic formula to each site (such as 148Apps, Macworld, and Slide to Play) to establish a single definitive Qi score for each iPhone app and game.

Groove it on app

Boogying maniacally onto Qi's dancefloor this week with a rad 8.9 score is the audio-visual spectacular Groove Coaster. With its psychedelic animations and tub-thumping tunes, Taito's rhythm-action iPhone game is definitely gonna get you.

And since it comes from the mind of Reisuke Ishida, the man behind the frankly brilliant Space Invaders Infinity Gene, we're not surprised this one has performed as well as it has on our chart.
TouchMyApps couldn't stop listening to, or indeed playing, Groove Coaster during review, remarking that, "it’s challenging, engrossing, and fun, and between the three difficulty levels, the achievements and the avatars, items and skins to earn, there is incredible replay value."

Om Nominal

Not content with picking up a BAFTA for Best Handheld Game earlier in the year, Cut the Rope maker ZeptoLab has dangled another high-quality and exceptionally tasty morsel in front of app consumers' mouths.

In the semi-sequel Cut the Rope: Experiments, players once again do exactly what it says on the tin, slicing lengths of string in careful ways to feed the insatiable, wee monster Om Nom.

There’s a new character in this second Cut the Rope outing alongside a host of fresh gameplay mechanics, but what we’re really waiting for is the Cut the Rope comic book, coming soon. Yippee.

You can get the up-to-date information about which games are reviewing best over at the Quality Index.