Arcus Odyssey/Act 7: A Nightmare Castle

New enemies:
 * Scorpion: Has a fast-firing ranged attack, but not very strong. Lead with your shots raining in front of you, and you should be fine. Its green attack explodes when it hits a wall—the purple one is normal but occasionally causes poison.
 * Exploder: These red swirls sit on the walls, waiting to get hit. When they die, they send shots in three directions.

New items:
 * Magic of elemental summoning, beyond the entrance.
 * Magical power crystal, up and to the right of entrance.
 * Herb of purification, in the center.
 * Medicine of regeneration, in the upper right.
 * Magical power crystal, in the upper left
 * Medicine of regeneration, lamp of life, and doll of life, at the end of the first tunnel.

Near the entrance, you will find one of your old companions, dying. There's nothing you can do for him/her. Keep moving, and go down the hall to the right. Your sight will be obscured somewhat by water, but you will be able to see well enough to hit your enemies. At the end, there will be a door (you might have to approach it at different angles to get in). Inside, you'll find Yodi. Ignore him, since your attacks will not be effective. Instead, aim for the sitting figure in the back of the room. When that is destroyed, Yodi goes with it.

Backtrack to the original room, and move up and to the right, going down the stairs. Follow the passageway to the end. You will emerge on a platform in another part of the dungeon. There are several healing items to pick up. Go left, and you will find Ginoban. Again, you must destroy the figure in the back of the room.

Go back to the first room yet again, and go left instead of right. Stay to the left, and eventually you will come to a door. Inside you will meet another old enemy, Slithe. Do the same to him as you did to Yodi and Ginoban.

Now head east. At the end of the corridor, you will find a large, empty room. Enter it. If you come here before defeating all 3 of the old bosses, you will get a message saying you sense something is wrong. This boss in its basic form isn't too hard—it pops in and out of the ground, but its attack is slow. However, it occasionally spawns creatures that will literally spray the entire screen. Kill them as quickly as you can, they should fall in one hit. You won't be able to hit the main enemy as often as you'd like, but it should fall eventually. Just keep circling it and dodge its attacks, while getting in your own.