This enemy is very similar to the White Roundhead Zombie in Desert 6. They appear in large mobs and their Laser attack is dangerous. Taking them out from a distance with any Fire type weapon, especially the Magician's Super Volcano 4, makes the fight a lot easier, as they are weak to fire. Alternately, the Magician's Big Icicle 4 and the Sniper's Triple Poison 4 also helps. Watch out when they are paired with Blue Diamond Bats, as they are capable of freezing and a mob of this enemy can be really damaging. To avoid this, clear the area of any bats before attacking these zombies.