NESizm (NES Emulator)
  1. All files
  2. Casio Prizm (fx-CG) Programs and Games
  1. All files
  2. Casio Prizm (fx-CG) Programs and Games
  3. Casio Prizm (fx-CG) Games


NESizm is a Nintendo Entertainment System emulator for Prizm fx-CG10 and fx-CG50. It supports reasonably accurate emulation at full speed for the CG50 at native speed and the CG10 when overclocked. It supports most major titles. Full source code and information is available at


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Archive Contents

Name Size
nesizm.g3a 239.6 KB
nesizm_cg10.g3a 239.6 KB 11.1 KB
Download file
File Size
320.0 KB


3 years, 11 months ago


10/10 (9 votes)
↳ this version
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Excellent! The sound capabilities are an awesome addition. Highly recommended.

This is one of the best programs on the CG50 hands down, a must download. It is a really solid emulator, it needs a lot of work though and with the lack of updates I don't think the work that this project needs will get done. The 2 biggest flaws are the fact that it cannot support more than one memory bank, many of my favorite games that would have made for fantastic lunch break distractions such as; Sid Mires Pirates, Digital Devil Story Megami Tensei 2, and the famous Earthbound Beginnings utilize more than 1 bank. The other issue is just "3D" rendering ig, for example "Days of Thunder" will freeze up, and games like Rad Racers 2, Nigel Mansell's World Championship, and Michael Andretti's World GP all have very noticeable graphics issues. It is also missing quite a few mappers which render some games totally unplayable but this is way more understandable since there are so many one off mappers. What is the point of coding in iNES 1.0 Mapper "076 NAMCOT-3446" when only one game is going to use it and that game is exclusive to japan none the less unless you are using a translation hack. So that's more understandable. But of everything I wish that 2 bank carts are supported so we don't miss out on some of the best games of all time. The 3D rendering stuff can either be very minor like in Rad Racer 2 and Andretti's World GP, or it can be entirely game breaking like Days of Thunder or trying to pit in Nigel Mansell's World Championship. I REALLY hope this stuff gets added in a update, there is a demand for it in me atleast and I hope enough people hold my demand for it as well. This is one of the best programs out there, it could be better though. I love this program to death and highly recommend it, it can even run harder to run programs like kirby's adventure which even on OG hardware causes slow down.

A fully-featured emulator that runs NES games beautifully at 60fps (fx-CG10/50). Just load up SMB3 or The Legend of Zelda, and you can have an enjoyable portable gaming experience. 10/10. Plus system clock is nice.


  1. NESizm (NES Emulator) (published 3 years, 11 months ago; 2020-08-07 02:36 UTC)
  2. NESizm (NES Emulator) (published 4 years, 2 months ago; 2020-05-25 03:22 UTC)
  3. NESizm (NES Emulator) (published 4 years, 4 months ago; 2020-03-01 20:32 UTC)