Here's a simple demo bouncing pixel "game" built in the engine, it's not much of a game but it'll do as a simple demo. I didn't make something overly complicated because I'd rather spend time working on the engine, not the demo. I'll make a better game that demonstrates all the features of the engine in a later ship, once I add more advanced features.
Use WASD or arrow keys to move the dot and CTRL+Scroll to zoom in/out.
The jitteriness is because this is a low-resolution display (128x64) and it is monochrome (ie black OR white, nothing in between) so I can't do antialiasing. These are hard constraints and I can't do anything about them as they're the specs of the SSD1306 display (which is what the game is displayed on if you run it on the Pico).
Here's a video of the exact same code - no modifications, just a different compile target - running on the Pi Pico: