User blog comment:PB&Jotterisnumber1/Sneak Peek: Spin-off of the Theory series!/@comment-3969350-20130511155449/@comment-3969350-20130702172948

Alessandro holds Jelly Otter hostage in the final world. Defeating him will unlock Jelly. World 38 has Peanut as hostage (being held by John Jamie). Butter is held hostage by Giuseppe Todaro in World 39 in where Giuseppe would give her SBS if you lose all of your lives in the boss round.

There are also 5 bonus worlds that you can purchase for 50,000 sapphires (the replacement for jewels in the Theory series).