Bola Bolha I did not like this game, personally. I was not able to progress past the first level.
Something very annoying is the intro. There is no way to skip it. In order to allow more user accessibility the player should be able to skip through each frame when re-entering the game.
The controls are very clunky and unresponsive. It is a chore just to move Bola Bolha around the screen.
The enemies are impossible to kill as there are far too many at the start, with absolutely no way to retaliate. Pressing the CTRL button to fire does not fire immediately, there is a very unnecessary delay and only seems to fire when it feels like it.
The last problem is that the control layout is very unconventional. The CTRL button right next to the arrow keys to shoot is extremely awkward and severely limits the player in their ability to play, and your ability to expand upon controls in the future.
If these things were fixed I may have been able to progress further in order to see what the game holds for me.