Bubble5 is the well-known strategy game, 5-in-a-row with different versions for 2 players.
The players alternately mark one field of the matrix with their bubble.
The winner is the first player who get an unbroken row of 5 bubbles horizontally, vertically, or diagonally.
Play the game with a human opponent on one phone.
You can play the game in different variants.
Use bombs and wildcards, or play with time limit.