Extra money:
Begin a new game, and buy as many daggers as possible from Boltac's Trading Post. Save the game, reset the NES, then enter POGGSY as a password. Return to Boltacs Trading Post and sell all the daggers that were previously purchased.

Have both evil and good characters in the same party:
Place all your evil characters in one party, then go into the maze and have them camp at the stairs. Save the game at that location. Start a new game, and place the characters with a good alignment in the party. Go down into the maze and search at the stairs. You will find all your evil characters there, and they will join your current party. Note: Your party can not exceed six characters at one time.