most of them are just "viruses", they're either harmless or harmful (so for most of them, test them on a VM!!)
fills your RAM by doing everything it can and after a while it shuts down the computer.
the dumbest virus i have ever made. this virus is themed around Stingy, a puppet from LazyTown.
a batch game where your goal is to close the upcoming error messages before it gets crazy.
a C program that lets you draw on your screen. keep in mind that you should draw when there are no active windows on your desktop, since if there are any active windows, the windows erase what you drew and you cant undo it.