Very good
I liked the music and graphics, and the gameplay was not bad. However, while the graphics were good, they were a bit distracting from the game itself, and it was very annoying when a blue cell pops up right in front of you in such a way that you don't have time to react, or when no red cells appear for maybe 10 seconds. Plus, I've seen many games that use the same concept of 'avoid these and collect those'. Other than those griefs I have, I still very much like this.
Music: 9/10
Graphics: 8/10
Gameplay: 5/10
Story: Non-existent