Here is Bee-Ball mockup for the Odyssey^2.
No, I'll not code it.
Don't know if this screen is doable, is possible to change the graphics "on the fly" using line interrupts but don't know how flexible it is.
Odyssey2 support 4 single colored sprites limited by 8x8 pixels each, I'm overlaping 2 for each bee. The raquets are made by bios character, as well the ball and the bee's eye and wing. (I can use up to 12 bios characters at same line).
The net is not possible by this way, I have vertical lines but not in middle of the screen, perhaps I can to draw it using others bios character the problem are these characters can't to overlap others characters. If ball collide on the net I will have problems (screen glitches I think). Probably is required a good software collision code to prevent this.
Bee judge and the leaves (double sized) at top are using the 4 sprites in proper place on the screen. The background color is the darkest green I have, It's doesn't contrast much with the sprites, another problem.
The graphics can be improved, just need to know more about this machine.
I think Odyssey 2 could be a better machine with a full bitmap background like Fairchild Channel F. The Bios characters will be useles as I could draw them directly in the video memory.
Other problem is the bios character uses the first KB of the rom, but the bios stay on the console, so the cart itself have only 3 kb of data, why not to keep the first kb to the bios but in the cartridge, at least I could personalise the fonts or use the extra characters to draw my own sprites.
Much of these design mistakes was solved in odyssey^3 but that was late.