Expert++ (E++) is an unofficial game difficulty setting which can be played using Custom settings. To play on Expert++ mode, start with the settings from Expert Plus mode (or Endless Plus mode), select “show settings”, and make the following changes:

• 0 starting PWR.
• 0.5 credit multiplier.
• -1 KO time.
• 0 starting credits.
• “Less” Consoles per level.
• “Less” safes per level.
• “More” daemons.

Expert++ was first introduced by Andrew Kay.