There are 2 repositories under hyperchip-64 topic.
A Multi-System emulator in Scratch 3.
An extension to HYPERCHIP-64 that adds multiplication and division routines, a new skip, an opcode to swap out the color palette, and more.
A CHIP-8, SuperCHIP, XO-CHIP, and HyperCHIP-64 assembler that can assemble programs for supported extensions.
Next generation CHIP-8 emulator compared to the original BandCHIP emulator (never went open source).