Complex sentence: Despite the presence of a life meter, the player can only take two physical hits from the enemy: a single hit drains half of the meter and the player is killed instantly when struck by a projectile attack such as enemy bullets or lasers.
Split into simpler sentences: Despite the presence of a life meter, the player can only take two physical hits from the enemy, since a single hit drains half of the meter. The player is killed instantly when hit by a projectile attack such as enemy bullets or lasers.