MIT Mystery Hunt 2020/Balloon Vendor

Balloon Vendor is the fifth round of the 2020 MIT Mystery Hunt, unlocked after 28 feeder puzzles are solved.

Description
[INSERT VISUAL DESCRIPTION OF ROUND]

List of Puzzles
All feeder puzzles are represented by balloons in the cart.
 * - A dark purple balloon of the typical shape.
 * - A black knight.
 * - A green bird.
 * - A flower with five petals of different colors.
 * - A representation of a Viking.
 * - A 7x7 crossword.
 * - An egg with arms and legs.
 * TEAMWORK TIME: - A blue top hat.
 * - The metapuzzle, represented by the Balloon Vendor himself.