I just entered the basic uppercase Apple ][+ font in sprites and added a SFX that is the tone of the boot beep of the Apple ][. If this is exciting to you, use it in whatever project you want with a lil' credit in the comments.

I also added a few character I wish I'd had back then in spritesheet 1.

Initial running of the cart cuts off the beep. Reset the cart to hear it properly (hit Return and choose).

Enjoy!

apple2 retro gfx