VisitntX's Genesis Game Genie

[VisitntX]

Yeah, that is another way that I only did trying to find the invincibility for Fatal Fury 2. But with variations. I know I have to train more that method as my results were two, one making it both invincibles and one that if you push a button make the character vulnerable. And took me more than 30 minutes.

Now let's see if I can mimic it at some extend.

[Pugsy]

Here's a quick Invincibility..

Shadow Dancer - The Secret of Shinobi (W) [c][!]

RHVA-A6Z6
ADWA-AA9G
RHWT-A6YA
RHWT-A6ZA
RHXA-A6VC
Invincibility (the first 3 codes are essential, the last 2 codes protect you against bumps)

The problem with making sprite collision cheats is that you will often need more than one code and you generally need to test the cheat throughout the game (which I haven't done here). The method I use is to make large trace files and then spend a few minutes breakpointing suspect code, it mainly comes down on how good you are backtracing through the code to find the suspect code. I'm quite good at backtracing but I generally cheat at it now

[Hybrid]

ok got 'em

[VisitntX]

Well, these two, but only the invincibility should be replaced as the Master Code is new.

Master Code
AABT-AN5J

Invincibility
HKWT-AA5W

Both for the Lightning Force (U).

[Hybrid]

what codes are the good ones???

[VisitntX]

You're welcome. Remember, those are the basic ways, there will be games where you will have to find another way.

[Whipon]

Interesting ^^

Its interesting. I'll play a bit with your methods to see if I can make any progress. Thanks a lot .

[VisitntX]

I'm glad to hear that you like MESS, it's really powerful.

For invincibility, when it comes to disable the collission, depends of the game. What I do is search first a RAM address. It's not necesary that the address work fine in the game, just you will need it to then make a WP. Then once they hit the character the debugger will jump. Here are a couple of things to do, see if you can change the value, if not try to make a return from subroutine, if that will not mess with the game, if not, try to see how much you will need to expand a branch to disable the collission. But there will be times where this will also make enemies or bosses invincibiles. So you can also press SHIFT+F11 in the debugger when it jumps and block the jsr or jmp, in genesis you can also block the bsr, and that should give invincibility. Now this also have some sideeffects, sometimes you will have to do it for each collission type (object, type), then you can also with this make enemies invincible, but not so often. Then if nothing works, put a read when nothing is hiting you, and see if you can find a piece of code to replace poking the invincibility RAM address (if that is clean and works fine when you used it as a PAR. You can see that the controls for the invincibility will not be used as you will be invincible, that's a rusty way to explain it, you can also do it to get infinite energy codes, but for energy addresses, most are the control for the display. There is another way left, in games that have energy, if you press SHIFT+F11 in the debugger you will be able also to block the collission. And sometimes this work for games that only have lives, and when the debugger jumps for the lives address as soon as the character is hit, once again, SHIFT+F11. Remember that the method is not perfect as explained above, but it can also works. If the RAM value is zero and clean, and it works fine as a PAR you can use also clr instructions.

Well, that's a little rusty, I know, I suck when it comes to explain these kind of things. Hope that at least you get something of what I tried to explain.

[Whipon]

What method?.

No need to thank me, you've made lots of codes that I enjoy very much (we share the cheat fever) .
I was wondering what method do you use to make the sprite to sprite collission disable codes. Its hard and long to explain (sorry for these adjectives)?. If not can you explain the method a bit?. Its just to get used to it. For example I was working in a better invincibility for Shadow Dancer (the one I hacked last time makes the bosses invincible also), and couldn't make it by comparing two traces (one with the character in normal state, just standing) and the other one with the character just being hit. That method worked for me a lot of times, but some games, like Shadow Dancer, gave me a lot of trouble.
BTW I started to hack some Atari 2600 games with MESS. It rocks!!!. One debugger for almost any system. No game can stop me now, lol.

[VisitntX]

Yeah, I like too the BGM of this game. Thanks Whipon, that should be the official codes then.

[Whipon]

Like a charm

Well, I flashed the game again today and everything seems to work fine. I couldn't find any issue. This game has a great BGM. I really liked it ñ_ñ.

[VisitntX]

Whipon, tomorrow when you'll be able to test the codes, please test these two. Probably now everything should work without any isssue.

Master Code
AABT-AN5J

Invincibility
HKWT-AA5W

Thanks a lot again.

[VisitntX]

Sure, no problem, no rush at all. Thanks for all the help.

[Whipon]

Ok n___n

I'll test them tomorrow, because I have to wake up early in the morning and must go to sleep u_u.
When I return from tomorrow I'll test the code and I'll let you know the detaills.
Thanks a lot.
Whipon.

[VisitntX]

I was thinking in that if this last code doesn't work.

This is the last code I will ask you to test, this is a sprite to sprite collission disable.

RZWT-A6XW

If this code doesn't work it will be very strange. Thanks again for all the tests, you're a great help.