Three Pillars: The Race, Upgrading the Vehicle, Buying upgrades. 

The Race: A Vehicle will automatically race or move along a map. At various intervals, the racer will need to perform a time jump. At this point an analog clock will appear and the player will have to enter the time. The player will be given 3 chances. A wrong input will harm the vehicle velocity. If the player fails three times, their time machine thing breaks and they lose the race. At the end of a race, a player will be awarded money depending on their performance and race difficulty. Race difficulty will be how complicated the analog clocks readings are and how frequently they appear. 

Upgrading the Vehicle: Using money earned from races, a player can buy vehicle upgrades. These upgrades allow for things such as faster movement and cosmetics. When you attempt to buy something, a few things can happen. If you give to little money, the seller will raise the price. If you give too much, the seller will ask how much change the player wants. If the player wants to much change, the price of the upgrade is increased. If the player wants too little change, the shop will give too little change, the player will be notified they made a mistake, and shop prices will increase. Using the shop correctly will build trust and lower upgrade prices. If you made a mistake and the price is raised, the lowering of prices on correct purchases will be accelerated to a point.

Maintaining the vehicle: The player will be tasked with refueling their vehicle. Except their fuel ingredients are separated. You refuel the vehicle, the player will be provided visual circles they have to convert to fractions for fuel. You will also be tasked with tuning the engine. You will be given fractions, and you have to fill a circle (to turn a screw or knob) to match the fraction. The player will be notified of mistakes and their race performance will be impacted. Doing fractions incorrectly will make their vehicles slower during a race. 

Gameplay Scenarios/Types/Examples

• Obstruction: You approach a dead end of a track. You are given a clock on screen with the time you need to warp to. On a successful entry, the race continues and you get a speed boost if you entered the time fast enough. If you fail, your speed takes a hit. After three fails, you crash and the race ends.
• Time Gate: You approach a time gate with a digital time. You have to set an analog clock to match the time for the time gate to unlock. Three tries. Success allows you to continue. Speed boosts for going fast. Slow down on a failure. 3 strikes and your out.
• Travelling a time stream:  When you enter a time gate, you will travel a time stream. You will be given a digital time and a multiple choice selection of analog clocks at points where the time stream splits. Select the correct one. The other streams will keep you in the time stream. You must get a certain number of correct answers to leave the time stream. This will vary with the map. 
• Time Accelerator: A gate with an analog clock will appear. You will be given  a multiple choice selection of digital times. Enter the correct one and you will be given a speed boost. Enter the wrong selection and you will not get the speed boost. You will be given a second chance. Take it and succeed, you will be given a weaker speed boost. Take it and fail and passing the gate will slow instead of just not doing anything.

You can buy new ship components and sell old components. 

Selling: When you sell a part, you will be given money depending on its value. It will be more than is needed. Keep in mind money is handled as bills, not total money. You will need to give the buyer their change. If you give them the right amount of change, your reputation grows. This will increase the sell value of future sales. If you give them the wrong amount of change, you will have to try again and your reputation will decrease. This will decrease the value of future sales.

Buying:  When you buy a new part, you will have to hand over bills and change. Pay too little, they will demand more money and your reputation will drop. This will increase the price of future purchases. Pay the right amount and your reputation will increase. This decreases the price of future purchases. Pay too much, and you will be given a very small boost in reputation for the tip.

Items being sold: 

   Items unlock as your reputation grows. 

• Thrusters: Increase the base speed of your vehicle. 
• Fuel Tank: Allows you to race for longer periods of time as races grow longer or more fuel demanding (Time shift obstacles are costly in fuel).
• Turbo: Increase the effect of speed boosts.
• Nitro: Player activated speed boost. Lasts longer/ lower cooldown. Effect scales with turbo.
• Cosmetics: Customize the looks of your ship.

The initial description covered the garage pretty well. There are two games. One where you are given a shaded circular and you need to enter a fraction (refueling), and a game where you are given a fraction and you need to shade a circle/ turn a knob (tuning the engine). The only elaboration is that you can unlock different fuel types as your reputation grows. Each one is simply attached with an efficiency. One might make time gates cheaper fuel wise. One might make time shifts cheaper. One might be more efficient with basic movements. One might make speed boosts cost less fuel. It allows the player to specialize for a particular map. Some fuels may be really good at a particular race mechanic, but have a negative impact on another part of the race. Such as a really, really cheap time gate fuel cost, but time shifts cost more fuel. Tuning the engine simply effects the components performance. Tuning the engine effects the speed. Tuning the turbo effects your speed boosts. Etc. The quality of the part (how much reputation it took to unlock/how expensive it was) effects the difficulty of the fraction minigames. Think 1/4 vs 3/28. 

Reputation is a stat you can slowly increase as the game continues. Reputation is earned through racing and good shopping/selling. Reputation unlocks new and improved items in the shop. A race will always grant reputation. Completing a race boosts you reputation gain. Getting Higher ranks in a race also boosts the reputation gained. Bad shopping can reduce your reputation. Its a pretty simple mechanic.

Game Blog: https://docs.google.com/document/d/1rDHAojG5Rnx2Vlgbns0YoJ6Ooz8GNGcv1NcCekCm7SI/edit?usp=sharing 

Game Prototype: https://scratch.mit.edu/projects/586414560

• A computer capable of accessing the internet and running scratch.

These are the various tasks you will need to be able to accomplish through the interface.

• Main Menu
• Racing Select
• Start Race
• Shop
• Bills you are paying
• Insert the change you want
• Turn a nob
• Type numbers for fractions

I edited the stash cash sound to make my robot voice!