According to director Jason Rubin, Crash Bandicoot utilized a system of dynamic difficulty, making various tweaks based on how well or how poorly the player was doing. Many of these tweaks were made to facilitate more inexperienced players, such as providing more lives and Wumpa Fruit to players running low on lives, giving Aku-Aku Masks after losing 5 lives, and slowing down boulders with each lost life.
Contributed by Kitsune Hawk