Glowfish (Full) (2012) iPhone and iPod touch paid app gone free, 5 stars
Glowfish features 50 levels, filled with charming creatures. Navigate your way through each vibrant maze with a fluid joystick control system as you rescue lost friends from the evil sea urchin.
Definitely recommended, because which is now for free. Glowfish works on the iPhone, iPad and iPod touch with iOS 3.2 or later. Currently not for Android (Google Play) device.
iPad: $ 0.99, download Glowfish HD (Full) here
Android (Google Play): Not available yet