Developer ustwo has updated its rather excellent and extremely colourful Pocket Gamer Silver Award-winning Whale Trail with a bunch of new content.

For starters, the upgrade introduces 32 Challenge levels into the mix, which - in true iOS fashion - test your flying skills and award you up to three stars based on your performance.

These new Challenge levels come pre-loaded with support for Apple's social gaming network Game Center, meaning you can unlock a further nine shiny achievements. That's 52 in total.

Finally, the update adds a series of Hyper-Boosts that launch protagonist Willow the Whale high into the darkness of space, and an "awesome" Whale Trail music video created by the sea creature's best buddy Gruff Rhys.

If any of that tickles your fancy, you can grab Whale Trail from the App Store as a Universal app for 69p / 99c.