checked-no =>Mission Classes: Additional Mission Classes are unlocked as you progress through the game. * Bronze/Silver/Gold/Platinum Classes: Unlocked by earning a specified number of stars and completing all missions in the previous class. * Diamond Class: Unlocked by earning at least 3 stars in all previous missions of the game. =>Extra Free Flight Vehicles: Complete the game's missions to enable additional aircraft in the Free Flight mode. * Turbo Jet: Complete all Silver missions. * Super Rocket Belt: Complete all Gold missions. * Pedal Glider: Complete all Platinum missions. =>Super Aircraft: To enable the use of any of the "super" aircraft in any of the game's missions, just earn three stars in every mission of the game. =>Free Flight Mode: Various extras can be unlocked in the Free Flight mode. * Extra Flight Time/White Balloons: Complete Silver Class to unlock white balloons in Free Flight. Pop these balloons to extend your Free Flight timer. For every 20 you pop, the Free Flight timer will increase by 30 seconds, up to a maximum of five minutes. In addition, you'll receive rocket belt fuel upgrades at 40, 80, and 120 balloons. Please note that while there are 120 white balloons in total, they can't all be popped by the same vehicle. 40 white balloons will appear for each of the three vehicle classes; you'll need to use all three vehicle classes in order to locate and pop all balloons. Balloons requiring a different vehicles will be somewhat transparent when viewed from the wrong craft. * Extra Vehicles: Unlock additional vehicles in Free Flight by using them in the Missions. * Evening & Night Flight / I Rings: I Rings are scattered over the island. Fly into each of the 75 rings to activate them. Find 30 rings to enable Evening flight, and 45 to enable Night flight. =>Dioramas: Dioramas can be earned once you unlock Gold Class, and can be earned in a few different ways. * Stunt Rings: In Free Flight mode, use a plane to fly through the red Stunt Rings while performing the specified stunt. 60 are floating above the island, and every 20 collected unlock a new diorama. * Mii Trophies: In Free Flight mode, use a rocket belt to locate and gather Mii trophies. 60 are sprinkled over the island, and every 20 collected unlock a new diorama. * Gold Rings: In Free Flight mode, use a glider to locate and fly through shiny gold rings. 60 are floating above the island, and every 20 collected unlock a new diorama. * Mecca Hawk: Earn 3 stars in ALL of the missions to unlock this special diorama. =>Mecca Hawk: Earn 3 stars in all missions of the game and Mecca Hawk, the giant robot from Pilotwings 64, will be roaming the island. Visit him for a special I Ring message.