Fidget DIY
Graphics play a big role in this game. Also, the core mechanic involves drawing custom legs for each runner to help them jump over obstacles.
You click to draw legs for runners, and you must adapt Fast to obstacles.
The main control is drawing legs with the mouse. You adjust designs on the spot using click and drag actions.
The game lets you design legs and race through courses. The stated features are drawing custom legs and racing.
Practice drawing legs to improve your speed. Watch obstacle patterns and adjust your leg designs quickly to overcome jumps and ramps.