Complex sentence: Bubbles appear all over the playing field, and they can be used to defeat enemies by launching them in their direction, squishing the enemies; however, the bubbles are just as deadly to the player if they are launched in his/her direction.
Split into simpler sentences: Bubbles appear all over the playing field, and they can be used to defeat enemies by launching them in their direction. Though bubbles are just as deadly to the player if they are launched in his/her direction.