I can't fault what Active Neurons 2 has set out to do. It's a delightfully addictive puzzler that does what it needs to do brilliantly, without breaking any boundaries or ever reinventing the wheel.
All the creative elements of Active Neurons 2 seem to work together in harmony; the music, visuals and sound effects all blend together seamlessly making the puzzle solving a truly relaxing and enjoyable experience overall. Despite a couple of minor frustrations, overall the positive outweighs the negative, especially considering the number of puzzles for the low cost.