From StrategyWiki, the free strategy guide and walkthrough wiki

[edit] Stage 7

This stage is somewhat longer and more difficult than the last one but you should take heart since you are very close to finishing the game. Jump around at the beginning to reveal a chest and then climb the ladder. A Fairy will likely appear out of the wall therefore you should quickly climb up or down and kill it before it hits you. Whenever they appear you should stand as far away as you can without going up or down a screen and hit it when it starts flying around.

When you climb the ladder kill the Cockatrice Head on the left and jump onto the ledge. Climb the ladder there and defeat the Cockatrice Head on the right. Double jump to the other side and kill the Fairy that will appear out of the wall. You will probably have to jump back to the platform below to kill it without getting hit. Continue upwards once it’s gone and defeat the next Cockatrice Head on the right. You can either kill it from the top or the bottom.

Walk to the right and open the chest that should automatically appear. A Red Gargoyle will be waiting for you on the ledge ahead but there are no platforms where you can hit it easily. If you have the Crossbow you will be simple to kill it, otherwise you will have to wait for it to dive at you and then hit it. Jump and grab the Money Bag and another chest should appear beside the other one you got awhile ago and then climb the ladder on the right.

There will be two Cockatrice Heads at the top and they will shoot out slow- moving fireballs at you. Destroy them one at a time and avoid the fireballs by ducking and not jumping if you can help it. There will be quite a few fireballs flying at you and you might have trouble dodging them if you jump around. Head left and the walls will disappear as you climb the ledges to the ladder at the top. The smoky swirls means that Ghosts will flood the next area.

Jump up the ledges on the right and then jump onto the slanted platform at the end. You can also drop off the side of this platform to get a chest. Kill the Ghosts and the Mimics on each of the platforms. The Ghosts will appear frequently but if you kill them when they appear you’ll be all right. Walk to the right when you reach the top and jump off the side to the ladder. Climb the ladder and you’ll be in the clear, at least until you reach the boss at the end.

[edit] Stage 7 Boss - Asteroth/Nebiroth

Asteroth will make another comeback here but it attacks exactly the same way as before. Follow the same strategy as before and he will die soon enough. After you defeat him he will transform into Nebiroth, a much powered-up version of Asteroth. The laser attack is transformed into a wide laser that will take up a good deal of the screen. You have to hide in the lower portion of the floor or duck under the laser to avoid it. The flame attack will also have a much longer range. That means you really have to keep away from him this time. Still, it’s basically the same as the fight with Asteroth. Stay away and hit him as much as you can – it will take awhile to defeat him but you can do with without much difficulty if you’re careful.

[edit] The Goddess Bracelet

When you defeat Nebiroth the first time, you will get a message from the princess saying that you won’t be able to defeat Sardius without her bracelet. Therefore, you will have to start the game from the beginning again and make your way back to Nebiroth with the bracelet. Darn it. The game will also be harder the second time around because the bracelet isn’t that good of a weapon and the difficulty level will be raised. If you defeat Nebiroth the second time without the bracelet you will get sent back to the beginning of stage 7 again.