1)Which bios do I need....
2)I'm getting Error02...
3)Is this game compatible with XXX Bios?
4)How can I tell which language....
5)Which bios version do I have?
6)Which bios version is better?
7)What is a 'bios'?
8)Where can I find the bios?
9)What does the bios look like?
10)Where can I get a new/different bios?
These questions are closely related and have nearly all the same answer. There is a compatibility reference posted on the Sega-Naomi main website located here --->Bios revision and compatibility list<---. This list can be referenced for most of the questions mentioned above.
Question: 'Which bios version is better'
Answer:
No version is 'better' than the other. There is no performance difference between any of the versions. Version upgrades were made by Sega to fix bugs, improve mobo software code, add GD-ROM support.
Question: 'Which language...' or 'What language...'
Answer:
Certain games have slight differences depending on the region they are meant to be played. Some countries prefer 'green blood' as opposed to 'red blood' because of censorship rules. The same thing goes with certain phrases, some things are not allowed to be said (such as profanity/swearing) and are changed per region to be accepted by operators.
Most games can be played most regions and 'which version...' would not be an issue. For example, Power Stone is in English when using USA or EXP bios. But if you use the same game with the JPN bios, both text and audio will be in Japanese. Some games only change the game's text. The others show no differences. I would say that 90% of all games will run under EXP bios, so that would be anyones safest bet. Overall, it depends on each person's preference, so others might have a different opinion.
Question: 'Where is the bios?'
The bios is a large chip located where the game cart is usually loaded as shown here:
Which version you have is marked on the white label.
Question: 'Where can I get new/different bios?'
Look no further than our own AndyGeezer who can offer whichever version you want.