This game is a slot car racing game to be played on mobile devices. The game would be controlled using only a single touch, allowing it to be played in almost any situation. It would be an incremental game, with the player gaining currency in order to power up their slot car. This currency would be earned with every lap the player completes, and would be proportional to the time of the lap. Along with powering up the car's speed and grip (how well the car stays on the track), the player would be able to purchase new tracks. These would become gradually longer as more are purchased, however would be in different locations with different themes, and would different rewards. Falling off of the track would result in a time penalty being added to the player's time, reducing the amount of currency they earn from the lap. However, some tracks would have areas where, at the correct angle, the player could slide their car off of the track and onto a rap in order to skip a section and reduce their time greatly. This introduces risk and reward into the game, and doesn't completely punish the player for trying to achieve the jump as they will still gain some currency, and would be able to continue gaining the currency on their next lap.
Image from https://en.wikipedia.org/wiki/Slot_car retrieved 2/9/2016