Ignore Passwords is an unlisted command in the MS version of Chip's Challenge that allows passwords to be ignored up to level 146 (Cake Walk or Run-a-Muck). There are several different input keystrokes which will work; Ctrl-D, Ctrl-K, Ctrl-T, and Ctrl-F5 have all been recorded to add Ignore Passwords to the menu. Ignore Passwords can be deselected at any time, and closing a session will remove it from the menu, but will not lock previously unlocked levels.