We encountered several problems while building this project. The major ones are :

• At first, it wasn't our intention to make export the game in WebGL format. So, our level designing, game assets, and game design all were completely different. The game was meant to be a downhill racing game. But soon we found out that it will be very difficult for us to implement the NFT reward system if we do not export it as WebGL version. But the problem is, WebGl is not capable of rendering such assets which we used in our game earlier. So, we had to completely change our idea so that the game is at least playable and enjoyable in the browser. 

• Next issue we faced choosing which blockchain technology to use for our reward system. We didn't have any previous knowledge about blockchains. But after doing some research we found out about Polygon. We also came to know that Polygon also offers a Test network called Mumbai which we can use for free. So, after thinking about the efficiencies we chose Polygon.

Prerequisites for testing the project - 

• Donwload the github rep zip.
• Servez for local hosting.
• Metamask chrome extension and metamask account. 
• Transfer some Polygon Testnet (Mumbai) tokens to your wallet. You can use the Polygon Faucet