lame
chain reaction games are supposed to be violent and destructive, and above all, fast paced, this game seems only to aim at serenity in which case it only succeeds with its sim style music, and the destruction is peaked at a simple one color schemed docile burst of a bubble which lingers no where long enough and then almost instantly disappears, and finally the game is extremely slow paced, i find it surprising that i managed to last to level ten without skimming for the next game to try
my advice:
explosions should be explosive, and fade away
tweak the bubble speed
and if you really want to create a great chain reaction, add upgrades and such, people love upgrades