'Moves all enemies along the x, y axes and check for collisions'

def adjust_enemy_position(self):

    for enemy in self.enemy_group:
        enemy.rect.x += enemy.x_vel
        self.check_enemy_x_collisions(enemy)
        enemy.rect.y += enemy.y_vel
        self.check_enemy_y_collisions(enemy)
        self.delete_if_off_screen(enemy)
