Running Kitty is based on the GameStop short squeeze that happened in early 2021, and again about 2 months ago, which was caused by this one guy called Roaring Kitty, hence the name.
It plays a lot like that T-rex game Google Chrome has when your internet doesn't work, but you can increase your cash portfolio by touching green lines. This serves as your life, hitting the red lines reduces your portfolio, and depleting them all gives you a Game Over.
This kinda seems like one of those projects you make to say "Hey! I'm still alive and I still make stuff", even though your prime days have long passed. Not that it's a bad thing. For what it is, the game is OK. It's simplistic, some decent character animations, and good music, but it seems a little unpolished.
One bug I've found is by clicking to start the game, then pressing SPACE, exits back to menu and messes the music, and eventually it crashes.