Dream Sprint

Dream Sprint is a Dream Event that appears exclusively in Mario & Sonic at the London 2012 Olympic Games. It is set on Bingo Highway from Sonic Heroes. The starting Olympic record is held by Silver at 1 minute 10.289 seconds

During London Party mode, when the player faces off against King Boo, they compete in this event.

Gameplay
This events starts with each of the players' characters being announced, before showing them on the starting line. Before the race starts, the player is able to hold to charge up and get a short boost. When the word "Go" appears on screen, the player must swing forward the Wii remote to start the event. Doing so with perfect timing grants the player a starting dash. Players control a ball with their character in it by tilting the Wii Remote with forward for going straight and left and right for turning left/right. Players Jump with and Jump Dash with  after a Jump. If the players try to go the wrong way, a yellow sign with turn around sign appears and a buzzing play. Along the way, player can run into bumpers which causes players to bounce away from them and Spinners which causes the players to lose their balls for a short time.

Course layout
The players start in a hexagon area with a Sonic symbol in the middle, walls on all sides except for the direction the players face, and a crowd beyond the walls. After a short straight part, the players need to make a left then right turn. Players then speed down a hill. After a short distance, the players need to make a 270 degree right turn then jump over or slow down to go under a bar. After the bar is an area of bumpers and short holes and a Flapper in the middle. After a Dash Panel, some rails appear and takes the players to a chute which has two sets of Dash Panels and takes the players to the pinball area. In the pinball area, there are two sections of bumpers. At the bottom of the pinball area are some flippers that try and stop the player from leaving. After the flippers and turning 90 degrees to the left, the players go in a straight line with a left turn. After two drops, there is a right turn followed by a U left turn and a Dash Panel. After this are two steps forming stairs with a thin ramp to the right. After another bar, the players go through a loop with Dash Panels and end in a circular area with bumpers. The only way out of the circular area is to fall through the center with little speed. After falling, the players need to go on a straight path to the finish line that has bumpers and two Flappers and a gap with a disc in the middle at the end.

Shortcuts
The first shortcut is located after the first bar and is made of a rail. At the end of the rails are two discs. Using this shortcut takes the players straight to the pinball area. But, falling down into the abyss below causes the players to end up near the rails of the normal route.

The second shortcut is located in the center of the pinball area. Falling into the hole causes the players to go into a chute and activate some Dash Panels and take the same type of path as the other way, but without 90 degree turn at the beginning and a drop at the end.

The third and final shortcut is located before the second drop after the pinball area and is made of a rail. Taking it saves the player from making some turns, and ends near the stairs.

Basics

 * Speed up: Tilt Wii Remote forward
 * Steer: Tilt Wii Remote left/right
 * Jump:
 * Shake the Wii Remote when "Go!" appears on the screen for a Starting Dash!

Tips

 * Press while jumping for a Jump Dash! Try usng this to clear obstacles.
 * Double rails are shortcuts, so use them when you can, if your ball is too small, you'll fall through.

Challenges
The Jackpot challenge is achieved by using the pinball area shortcut a number of times in this event. The criteria for unlocking each achievement are as follows:
 * Lv. 1- Use pinball area shortcut (center hole) once
 * Lv. 2- Use pinball area shortcut (center hole) 3 times
 * Lv. 3- Use pinball area shortcut (center hole) 5 times