Here is 2 games very similar I made.
They are called LineFun1 and LineFun2.
You get to interact with a graph line making it bounce up and down and moving it into basic but interesting line formations. Sometimes if you look at it enough it looks 3D.
The only difference between the two is that LineFun2 has a gravity line that can do bouncing motions.
You can also adjust the settings on how fast you can make the line move (hsol*hight speed of line*) and haw fast the line moves(sol*speed of line). Hope you enjoy it.
UP AND DOWN to interact