Ghetto Tanks
In highschool I took a introductory programming class. Once I realised that the class was focused on teaching VB6, I asked the teacher if I could just make stuff instead since I already knew the language. He asked for some proof so over the weekend I made this cheap knockoff of Pocket Tanks. On the second week of class I turned it in and he said I have an A for the semester and I could spend time making whatever I wanted for the rest of the semester. I really appreciated that and ended up learning a lot in that time period.
Unfortunately on modern systems this seems to crash most of the time on launch. I was able to get it to run by running it over and over until the crashes stopped.
This program needs the VB6 runtimes installed.