Norfair (7)

Use a power bomb to enter the next room.

Crouch and fire a missile to enter the shaft.

Drop through the fake acid (a type of hazardous liquid that appears solid but can be passed through) below you.

Work your way down to some lava (a pool of molten rock).

Drop inside the lava and bomb the left side of the ground to find a missile block (a destructible block containing an item).

Fire a pair of missiles at the missile block and enter the door below.

Climb the shaft and enter a tunnel on your right where you will spot a missile tank (a collectible that increases your missile capacity).

Roll right and set a bomb.

Fire a missile up at the missile tank as you fall.

Return to the tunnel and wait for the lower block to reform before grabbing the missile tank.

Drop down the shaft and bomb the left wall to reveal another missile block.

Fire a trio of missiles at this missile block and roll through the tunnel.

Space jump (a special jump ability) up the shaft here and grab the power bomb tank (a collectible that increases your power bomb capacity) at the top.

Return to the top right area of Crateria and open the yellow door there to get back to Chozodia (a region in the game).