CHIP-OTTO

CHIP-OTTO is a CHIP-8 interpreter/virtual machine for the Sinclair ZX Spectrum, ZX Spectrum Next and Cambridge Z88 microcomputers and web browsers.

CHIP-8 is an interpreted programming language, developed in the mid 1970s by
Joseph Weisbecker and initially used on home computers based on RCA's CDP1802
processor, such as the COSMAC VIP. It's a small, high level pseudomachine
language, designed for writing simple video games.
In 1990, Andreas Gustafsson released CHIP-48, a CHIP-8 interpreter for the HP48SX calculator; later, Erik Bryntse released SUPER-CHIP, a modified version
of CHIP-48, which added features and instructions to the original interpreter,
such as higher resolution, sprites (version 1.0) and scrolling (version 1.1).

ZX Spectrum Next Quick Start:

Use the browser to start the CHIPOTTO.NEX program. You will see a splash screen and after some seconds the CHIP-OTTO virtual machine.
Tap the "J" key, browse to "Chip-8 Pack\Chip-8 Games" and select the "YAS [Marco Varesio, 2015].ch8" file. More games and programs are available in the Chip-8 Pack.zip archive.