Lui has created a firekill practice rom. Usage:

1. Go to the desired world
2. Powerup before entering a level the distance from the castle you wish
3. Press select to increment the leftmost number in score (which represents how many movements the bro will take when exiting the level)
4. Press select-start to exit the level. Note the bro movements.
5. Go to the airship as normal You will get the pattern you selected with the ‘select’ button.