Mark Charlton About Roles Name : Mark Charlton Book Role Gateway Guide to the ZX81 and ZX80, The Author Games for Your ZX81 Author Spiele fur Ihren ZX81 Author Games for Your Timex-Sinclair 1000 Author Action Games for Your ZX Spectrum Author Change Request You can request changes or additions here. You can upload files. All change requests are actioned as quickly as possible and you will be informed of the result. Details Files Your Name * Email * Details Your browser doesn't have Flash, Silverlight or HTML5 support. Submit Thank you for your change request. We will respond as soon as possible.