Answer:
Assembly c# code
Explanation:
First you must create the sphere.
Second you must declare the velocity variable.
Third we make the movement process with IF sentence
We can choose the arrows or the letters, W, A, S, D keys.
W = up
A = left
S = down
D = right
In this example only you must create the figure and make the relation with the variables.
I attached the c# code.
