Just a browser-based pong clone from my early years of programming. One of the first ever games I built using 2D graphics.
Use W+S keys to control player 1 (left) and Up+Down arrow keys to control player 2 (right).
Built with raw HTML/CSS/JS using the Canvas element to render graphics.
I had this on my website in high school and we used to chain 3 monitors together during computer class and play a very wide game of pong. Good fun.