Bururu is a recurring character known as a candy mogul who orchestrates business ventures and promotional contests. His schemes feature intentionally difficult win conditions aimed at boosting sales while minimizing actual payouts.

In one prominent contest, he offered a chocolate castle as a prize, hiding the winning message between layers of chocolate, making discovery nearly impossible. When Zorori succeeded by licking through the layers, Bururu imposed an additional obstacle course challenge before allowing him to claim the castle, which later melted in a warmer climate.

He later organized a car race contest promising a new car and a year's supply of ice cream. Zorori won by enduring two hours of effort to reveal a message on an ice pop stick. Bururu then demanded victory in a miniature car race. Zorori won this race but received only a tricycle with a wagon and cardboard cutout, plus three cups of ice cream.

Bururu's exploitative practices extend beyond contests. His "Bururu Bank" charges fees for basic services like magazine access and water fountains and requires customers to collect Bururu-brand product wrappers for withdrawals. Similarly, his art museum offers free admission only to the front desk; viewing exhibits requires purchasing Bururu snacks, and exiting necessitates a cash payment.

These patterns establish Bururu as leveraging deceptive marketing and manipulative business tactics to profit, consistently placing obstacles between participants and meaningful rewards.