Decent game, needs some improvments.
As the title does say, it is a decent game but could use some improvments.
The bubble should bounce off the walls of the maze, instead of sinking in and stopping.
Music. Paragon X9 is a great artist from the flash portal you could use music from.
Your breaks can only go back to 100 and not beyond, this will make it more challanging.
Sound effects.
Picking the color of your bubble.
Other than that, solid first game. I can tell you put some time into it.