The legendary bubble shooter game. It's not too complicated. All you need to do is aim with mouse and try to shoot the bubble to the right direction towards a bubble from the same color.

1. PUZZLE BOBBLE
Puzzle bobble also known as bust a move, is a 1994 tile matching
arcade puzzle video game arcade video game for one or two
players created by Taito Corporation, it is founded on Taito’s
popular 1986 arcade game Bubble bobble, featuring characters
and themes from that game. Its symptomatically cute Japanese
animation and music along with its play technicalities and level
designs made it successful as an arcade game title and spawned
several sequels and ports to home gaming systems.

2. Two different varieties of the original game were on the loose. Puzzle
bobble shooter was in the beginning released in Japan only in June
1994 by Taito Corporation, running on Taito’s B system hardware (with
the preliminary title “Bubble bust”). Then after six months later in
December, the international Neo Geo version of the puzzle bobble
was on the loose. It was almost undistinguishable aside from being in
the stereo and having some dissimilar sound effects and deciphered
text.

3. At the start of each round, the rectangular playing arena contains a
prearranged pattern of colored bubbles. These are actually referred as
balls in the translation give in the game of puzzle bobble but they are
clearly to be bubbles because the pop, and are taken from bubble
bobble. At the end of the game the player controls an object known as
the pointer as it is used to aim and fire the bubbles up at the screen.
The colors of bubbles fired is randomly generated and chosen from
the color of bubbles still left on the screen.

4. When set to the US region, the Neo Geo varieties exhibits the unconventional
title “bust a move” and features anti-drug and anti-littering messages in the
title categorization. The Bust a move title was used for all the consequent
games in the series in the United States of America and Canada, as well as for
some (non Taito’s publish) consoles in Europe also.
The bubbles fired up on the screen probably travel in straight lines possibly
rebounding off the side walls of the pitch. The bubbles fired up stop when
they reach the top or touch other bubbles on the top of the pitch. If a bubble
touches same colored balls, making a group of three or more bubbles, those
bubbles as well as bubbles hanging from them are all together removed from
the play pitch. More and more points are awarded as more and more
bubbles are removed from the play pitch.

5. After every few shots, the ceiling of the play area comes down a little a
bit in order to make the game a little bit more challenging for the player.
As the ceiling falls the bubbles stuck to it fall along it. The number of
shots between each drop of the ceiling is predisposed by the number of
bubble colors remaining on the play field. As the bubbles move closer
to the bottom of the play field of the game, the music starts to play
faster and when the bubble touch the end of the play field of the game
the game is over.