|Spawns In:||Skull Cavern|
Flies back and forth in a single straight line between walls or objects. They are not aggressive, but will deal damage to the player on contact.
They cannot be killed (even by bomb explosions). Clearing obstacles in their flight path, such as stones, can give them more room to move which also gives the player more room to avoid them.
|Mines||Bats • Bug • Cave Fly • Duggy • Dust Sprite • Ghost • Grub • Lava Crab • Metal Head • Rock Crab • Shadow Brute • Shadow Shaman • Skeleton • Slimes • Squid Kid • Stone Golem|
|Quarry Mine||Copper Slime • Haunted Skull • Iron Slime|
|Skull Cavern||Armored Bug • Big Slime • Carbon Ghost • Iridium Bat • Iridium Crab • Lava Bat • Mummy • Pepper Rex • Purple Slime • Serpent|
|Bug Lair||Mutant Fly • Mutant Grub|
|The Farm||Wilderness Golem|