How do i make 2d bike game?

My example would be this game called trials

(GOOGLE GAMEPLAY OF IT U DONT KNOW OF IT)

And I Want to make it just like that ,but ill change some things so i don’t get sued from it

I dont think they have an android app of it yet

So it there any like 2dtoolkits (FREE)

Or how could i change my game into 2d mode

Also im using the free version of unity.

First check out rigidbodies, this will allow you to have physics like the bike in “Trials”. There are also wheel colliders that will give your bike’s wheels something to do. And for the 2d part, check out this tutorial.

Good luck with the project!