Walkthrough:Castlevania/Block 1

Stage 1-1
You begin your adventure in front of the castle. Simply walk forward and destroy the Candles on your road to get two whip upgrades and the Knife subweapon. Once equiped, enter the castle. Note you can jump behind the entrance: it'll make appear a bonus item you can grab before entering the castle.

Once inside the castle, the first enemies will attack you. Keep advancing while zombies are attacking you: if you stop, you'll eventually get surrounded and will take damage. Take the first stairs and destroy the candles to find the Holy Water subweapon, which is very powerful. Use it to kill the Black Panther awaiting ahead. Try to keep this subweapon for the rest of the game.

Continue to the right and drop down. Kill the zombies, take the next stairs, and destroy the last candle to make a Rosario appear: this rare item will destroy all enemies on the screen. Enter the door.

Stage 1-2
Bats appear here and will fly at you: kill them before they touch you. Climb down the stairs and break the brick wall with your whip: some meat will appear and you can take it to replenish your health. Take the stairs on the left to go down. Note you can skip this section by jumping at the right moment and with a good angle on a bat: the damage will push you over the brick wall.

Once downstairs, mermen will attack you: try to kill them as soon as they land on the ground, or they'll shoot fireballs at you. Jump to the right and take the stairs up. Note you can go to the lower platform to the right and kneel for a few seconds to make a bonus item appear.

Back upwards, climb the stairs and avoid the bats. Enter the door.

Stage 1-3
Proceed to the right: an Invincible Jar is hidden in a candle. Take it and rush to the right until the effect goes off. Kill the few enemies, mostly zombies, and you'll quickly reach the first boss.

The Phantom Bat can be quite a pain to attack, as it likes to stay in the upper section of the screen. It can shoot fireballs at you, try to avoid them. Don't get stuck into the right corner, or the Bat will take this opportunity to attack you.

Wait for the Bat to stop moving: it will then rush to you, so prepare to avoid it. Then, whip your opponent, and use you subweapons. The Holy Water can be very good on the ground, the Knife and Axe are perfect for air enemies.

Once dead, the Bat drops a Crystal Ball. Take it to finish the level!