https://lowkeydev.itch.io/3d-pong -Has a single player mode, but multiplayer is more fun in my opinion.
https://lowkeydev.itch.io/gradius-plus -Singleplayer only, probably my most graphically impressive game.
https://lowkeydev.itch.io/unhinged-pinball - Singleplayer only, absolutely broken, most entertaining to watch someone else play and try to figure out what's going on. Submission to #BadGameJam
Apologies for the application format, I can't export to HTML.
Thanks!