Earn at least 1 star on all 150cc Retro Grand Prix Cups
The Jetsetter, also known as the Aero Glider, is an unlockable heavy kart in Mario Kart Wii. It can be unlocked by unlocking 12 expert staff ghost in Time Trials or by scoring one star or better in the entire Retro Grand Prix on 150cc. The Jetsetter has great speed and a decent weight, so it is a bit hard to hit small vehicles around. Its bike counterpart is the Spear. It is the lightest large kart, and the fastest vehicle in the game, the second being the Sprinter. Also, it is fairly notable that the Jetsetter has worst handling, off-road, and mini-turbo, meaning that these stats are severely low. It makes stages with sharp turns nearly impossible, but it's great for Time Trials.