It is only one item though so can be harder to narrow down compared to rings, time, lives and things you can easily manipulate. Get the emerald and immediately upon being returned to the level then do a cheat search for anything different. Jump into it (preferably from below or with minimal movement). What I would do is make a savestate before going into a bonus stage. This sort of thing is normally reserved for key items in games but there are perks to doing it for something as simple as emeralds. There are two ways for the game to store emeraldsġ) The game treats it like any other counter (rings, lives, continues, score, timer.) and just adds one for every successful run.Ģ) Each emerald is its own entry in the "inventory" for the game. That means a counter is more likely but it could still be an inventory.Īnyway that might be getting ahead of things. If memory serves it does one after the other regardless of level (though maybe not two in the same act) depending upon how many you got before then. One emerald to get them all might be harder. In that case finding the counter for blue spheres is the same as any other cheat findingĮasy enough then to either set it to 99 or to 0 depending upon what needs doing. *this is the if greater/less than, if equal to, if between range. If you are restricted to more old school cheat styles without such things then that is harder and presumably why they were game genie codes as conditionals are basic programming really and you can edit the game's programming with them. Save conversion in earnest I tend to save for the epic RPGs or something.įor newer systems that is not so bad if you have conditionals*. The Wii was something more of a modern system so might have had save files tied to a given game and thus you get to inject the actual save contents into the archive the Wii used or modify said archive to look like what it expects.įor something like Sonic 3 I would sooner replay the game, maybe with some cheats if you don't want to do some boring sections again, or straight edit the save file. Some games might need 50 hours of work to understand each respective save file and sort any differences between them (if there are say 50 sections and they are all using some slightly different encoding, have a few changes made for the translation and all are a few bytes, or indeed a lot of bytes, out from where the other region has it then you get to figure it out and repair/regenerate any broken data) Some games might have some issues with say custom names for save files. make a modded version of the game to ignore hash failure which then tends to have the added bonus that saving in that modded version will make a valid save you can use again on stock as you are basically using it as a glorified save fixer). Some games might need you to sort the checksum/hash it does on the save file along with some minor things, which can be easier said than done (two main methods, assuming it is not obvious, are i. Some games might need a minor header tweak. Some games will work with just a rename of the file. Save region conversion is ever the fun topic. Hopefully you can then have secondary versions of hardpatched ROMs and play whichever suits you. Game genie guy, cccgp, and various other tools doing such things. Even more recently then many of those names (which got bought and sold many times over the years) instead became save editors.īonus for you is with the game genie being ROM patches you can patch them onto the ROM quite happily and have it run on anything that would otherwise have run the game. Other devices on later consoles had limited amount of ROM editing (sometimes master codes are ROM edits), or the ways the consoles worked mean you could more easily convert (the DS for instance has its binary in RAM so you can edit the ROM data when it lands/sits in RAM and convert that back to ROM edits far more easily than hardpatching a RAM cheat, though there were tools for the GBA on up to hardpatch RAM cheats. Later on in life/on later consoles there was a bit of overlap, and some game genies on some consoles had a limited amount of RAM editing as well. Though if you want game genie stuff then do read on as you can hardpatch things. The RAM based stuff would have various intercepts go out once a frame or something and write the memory to what it was told to write it to (or write it if a button combo was pressed).Ĭonversion between the two is sometimes tricky, maybe even impossible in some cases. That is to say the game genie stuff would sit on the cart, when the console asked for a specific section it was changing it would return the modified version instead. Anyway in classic cheat making then game genies tended to be ROM editing cheats while action replay/gameshark/codebreaker/goldfinger/pelican/.
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