In this game, you play as Stephen Hawking as he collects coins that he can use to upgrade his wheelchair, so that he can go faster and collect more coins.

Assets:

Wheel images:
The caterpillar tracks are modified from this: https://opengamegraphics.com/product/cartoony-tanks-set/
The rest of the wheels are from the cartoon car, Mini, and Dodge Ram in this set:
https://overcrafted.itch.io/free-paid-vehicle-car-sprites-

Engine images:
The stock engine is this image from AliExpress: https://ae01.alicdn.com/kf/HTB1H_3FJpXXXXaQXFXXq6xXFXXXH/A13-1-pcs-High-Quality-...
The rest are 2D images taken of these 3D models:
https://www.cgstudio.com/3d-model/4-cylinder-engine-701985
https://www.cgstudio.com/3d-model/v8-engine-04-605416
https://3dwarehouse.sketchup.com/model/438208c7d203e9d664e45cb8f34bfb76/MSXR-68-...

Miscellaneous images:
The menu background is a combination of these two images:
https://avto.goodfon.com/subaru/wallpaper-subaru-rally-pyl-les-holmy.html
https://www.stickpng.com/img/celebrities/science/stephen-hawking/stephen-hawking...
The image of Stephen Hawking used in the game is a still from one of the long shots of this interview:

Music:
The four randomly chosen in-game tracks are Jigoku's 8-bit Eurobeat remixes:

The menu music is the Monty on the Run theme:

The music played when Stephen Hawking sinks is Nearer, My God, to Thee: