A) Keyboard tricks

You can use these tricks to make special moves that you have to push two or more keys at once (TMNT, Vendetta, Final Fight) without complications, and to avoid surprises when you press the keys and they don't make the move -generally this happens when you need it XDDD- . Anoter reason is the commodity, it's more practical to use a key for diagonal shoots, than to have to use both hands (one with the cursors and the other with the shoot button). And you can find some fighting games with special moves activated (for example: Vampire Savior) or bars filled (for example: KOF 98) when you press several buttons at once. Unfortunately this trick doesn't work in olympic games (Track and Field, Hyper Sports) :( and you can't make fatalities and other moves of fighting games (Mortal Kombat II, Mortal Kombat III,...) :( .

2) Prepare a key to push several buttons at once:

First you must know how to set several keys for a button. This can be used for lots of things, for example: - Strong hits (2 keys at once): Samurai Shodown - Special hits (2 keys at once): TMNT 1 & 2, Final Fight, Vendetta,... - Special hits (3 keys at once): Vendetta,... - Jump and shoot simultaneously (2 keys at once): Toki, Robocop,... - Activate / deactivate Dark Force (2 keys at once): Vampire Savior 1 & 2 - To blow with the elbow (2 keys at once): Double Dragon - To shoot diagonally (3 keys at once): Toki, Gauntlet, Robocop,... - To pass bonus stages with no problems (4 keys at once): Mortal Kombat And many more combinations than you know... ;)

1) Make a Dark Force in Vampire Savior: - Enter in 'Input (This Game)' - Go to 'P1 Button 3' - Press ENTER and press the key it has (the default key is space). - Press ENTER and press another key (por example: 'V'). (After this ==> P1 Button 3: Space or V) - Go to 'P1 Button 6' - Press ENTER and press the key it has (the default key is 'X'). - Press ENTER and press the 2nd key you have set for 'P1 Button 3' (the 'V' key). (After this ==> P1 Button 6: X or V) When you press 'V', the 'Dark Force' activates (if 'special' bar isn't at 0). There are more ways to make the 'Dark Force' (the review of that game isn't available at the moment).

2) Diagonal shoots (up-right) in Toki: - Enter in 'Input (This Game)' - Go to 'P1 Button 1' - Press ENTER and press the key it has (the default key is Ctrl). - Press ENTER and press another key (por example: 'D'). (After this ==> P1 Button 1: Ctrl or D) - Vete a 'P1 Up' - Press ENTER and press the key it has (the default key is Up Arrow). - Press ENTER and press the 2nd key you have set for 'P1 Button 1' (the 'D' key). (After this ==> P1 Up: Up Arrow or D) - Vete a 'P1 Right' - Press ENTER and press the key it has (the default key is Right Arrow). - Press ENTER and press the 2nd key you have set for 'P1 Button 1' (the 'D' key). (After this ==> P1 Right: Right Arrow or D) When you press the 'D' key the monkey will shoot in that direction, that's more mucho más practical than to use a hand for the arrows and the other for the shoot XD . You can use this trick against monsters of levels 1 and 2.

3) Find new cheats
When you have loaded a game, the first thing you have to do is to enter in 'Cheat' menu, choose 'Options' and to check that 'Auto Save Cheats' is set to ON. Para empezar a buscar nuevos trucos, se usa la opción 'Start a new cheat search', pero como no tendrás la suerte de encontrar lo que buscas a la primera, tendrás que continuar la busqueda usando 'Continue Search'. - If you have used 'Lives (or another value)', go to that option and change the number (or leave it unmodified) and press ENTER. - If you have used 'Energy (greater or less)', go to that option and indicate if energy is greater, less, equal,... . To continue the search, press ENTER. - If you have used 'Timers (+/- some value)', go to that option and indicate how much secons have passed from the last time. To continue the search, press ENTER. - If you have used other options ('Flags' and 'Slow but sure ...'), you will have to indicate if the value has changed or not.
After doing that, exit from menu, wait a short space of time (a few seconds) and try again. If you're lucky, you'll see this on the screen: '1 result found, added to list'. If you have the 'Auto Save Cheats' option activated (set to 'ON'), the cheat will be saved in CHEAT.DAT . You can undo last search using the option 'Restore previous results' (this is useful if you see '0 results found'). If you see that after several tries, MAME always shows '2 results found' or another small number, you can do this: - Enter in 'View Last Results', write the memory addresses (the first number of every row) and test them. - Do the test setting '000' for the special field. - Type those cheats at the beginning or at the end of CHEAT.DAT, to find them with no problems if they don't work and you have to delete them. Ejemplo: opwolf:0:00C01C:18:000:Number of soldiers?

3.1) Infinite energy - Si estás buscando la energia infinita y aparece como una barra (por ej: KOF 2001, Mortal Kombat II, Operation Wolf, Street Fighter II,...), usa la opción 'Energy (greater or less)', al elegir esa opción te mostrará 'Saved all memory regions'. - Si usa números (por ej: Gauntlet II, Spiderman, Captain America and the Avengers,...), puedes usar la opción 'Timers (+/- some value)' o 'Energy (greater or less)'. Puede que la vida use dos bytes (depende del juego), es mejor empezar a buscar cuando la vida (health) es 255 o menos. Si puede tener más de 255 de vida, el otro byte será el anterior o el siguiente (ver ejemplo). Examples: spidey:0:20A040:FF:000:PL1 Infinite Energy spidey:0:20A041:01:500:PL1 Infinite Energy 2/2 kof2001:0:108239:66:000:PL1 Infinite Energy kof2001:0:108439:66:000:PL2 Infinite Energy

3.3) Infinite time A) It displays 'TIME: seconds' (example: KOF 2001) Start to search when last digit is '9' and use the option 'Timers (+/- some value)'. Continue the search 'cada vez que pase un segundo'. The value you must use in that option is '-1'. To make it easier, pause the game while you search :) . After several tries, several things can happen (you can see it when you use 'View Last Results') Despues de varios intentos te puede pasar esto (lo puedes ver cuando usas 'View Last Results'): - The time uses a byte. To indicate there are 10 seconds left, in the memory address has '10'(hex). Example: Street Fighter II - The time uses a byte. To indicate there are 10 seconds left, in the memory address has '0A'(hex). Example: Street Fighter Alpha - The time uses two bytes, one for each digit. To indicate there are 95 seconds left, in a memory address it has '09'(hex) y in the other it has '05' (hex). - The time uses two bytes. This happens you can have more than 255 seconds. Start searching when time is 255 or less. Example: Toki Example: kof2001:0:10A702:60:000:Infinite Time

B) It displays 'TIME: minutes:seconds' (example: Ghosts'n Goblins) Start to search when last digit is '9' and use the option 'Timers (+/- some value)'. Continue the search 'cada vez que pase un segundo'. The value you must use in that option is '-1'. To make it easier, pause the game while you search :) . After several tries, several things can happen (you can see it when you use 'View Last Results') - Time uses a byte (the memory has the number of seconds, although it's displayed in minutes:seconds). Example: Ghosts'n Goblins - Time uses two bytes (one for the minutes and another for the seconds). Example: Football Champ - Time uses three bytes (one for the minutes and two for the seconds). Example: Run and Gun Example: rungun:0:601319:03:000:Infinite Time rungun:0:60131A:05:500:Infinite Time (2/3) rungun:0:60131B:09:500:Infinite Time (3/3) C) It displays 'TIME: seconds:hundredths of second' (example: Rygar) - These are easy, one byte for the seconds and another for the hundredths of second.

3.4) Infinite lives and similar things You can use this to find infinite lives, potions, goals, number of enemies left,... You can use 'Lives (or another value)', 'Energy (greater or less)' o 'Timers (+/- some value)'. Search while the number of lives, goals is 9 or less. When you have 10 goals, potions,..., it can happen this: - The number or lives, potions, goals,..., uses a byte. To indicate that player has scored 10 goals, in the memory address has '10'(hex). Example: World Cup 90. - The number or lives, potions, goals,..., uses a byte. To indicate that player has 10 potions, in the memory address has '0A'(hex). Example: Golden Axe II. - The number or lives, potions, goals,..., uses two bytes. To indicate that player has 120 points, in the memory address has '01'(hex) and '20'(hex). Example: Run And Gun (points). - The number or lives, potions, goals,..., uses two bytes, one for each digit. Example: Dream Soccer 94 (goals). - The number or lives, potions, goals,..., uses two bytes. (The maximum value is 'FF'(hex) in both bytes). Examples: rungun:0:601280:01:000:Set Team 1 Points to 120 rungun:0:601281:20:500:Set Team 1 Points to 120 (2/2) ga2:0:20B43C:32:000:PL1 Infinite potions

4.1) Option 'View Last Results'

If you use the option 'View Last Results', you can see the memory addresses found after doing a search. The first line indicates which block of memory adresses you're watching. The other are the memory addresses that 'sirven' inside that block. The hexadecimal numbers that appear in brackets mean this (from left to right): - Number that there was in memory when you started a new search. - Number that there was in memory after last search. (last time you used 'Continue Search'). - Number that there is in memory now. (If the game is not paused, this number can change).

4.2) Opción 'Configure Watchpoints'

Another way is to use the option 'Configure Watchpoints' (inside 'Cheat' menu). All the options that appear show this the first time you enter: '0:000000 (0)'. The first number (the one which is before the colon (':') is the number of CPU, the next one (it's between the colon and the round brackets) is the memory address and, finally, the number in brackets is the length). Choose one of them (for example, the first one) and press ENTER. A menu appears: - Address: Memory address you are going to display. Insert an hexadecimal number. - CPU: CPU number. Usually leave it to 0. - Length: How much bytes are going to be displayed. If it's set to 0, the address' value won´t be displayed. If it's set to 1, you'll see the value in that address. If it's set to 1, you'll see the value in that address and the next one... - Element Size: Size (in bits). Default value is 8. It can be 8, 16 or 32 bits. (8 bits = 1 byte) - Label type: Shows or hides a label. If you choose '(None)', it doesn't displays any label. If you choose 'Address', it shows the memory address (in hexadecimal). And if you choose 'String' it shows a text. - Display Type: Como muestra lo que hay en memoria. Hay varias formas: Hexadecimal (por defecto), decimal, binario o ASCII. - Text Label: Text displayed on screen if 'Label Type' is set to 'String'. - X, Y: You can use these to choose where the label and the value will appear. To display it at the top-left corner of screen, X and Y must be set to 0. - Skip bytes: With this option you can skip bytes. It's useless if 'Length' is set to 1. If you aren't sure, set it to 0. - Elements per line: How much items (blocks of bytes) will be displayed in a line. If it's set to 0, it shows all the bytes in a line. - Add Value, Address Shift, Data Shift, XOR: New options that appear in MAME32 v 0.62. (At the moment I haven't tested them).

5) Modify cheats

This serves to avoid that anyone can notice you have been playing with infinite lives, infinite time,... when you capture the screen with F12. ;) Si usas la opción 'Add / Edit a cheat', you can see how MAME shows the cheats. Of all those options, the only one that interest to you is 'Data'. Go to that option and change the number. If you are not sure of which you are doing, check that you have deactivated the option 'Auto Save Cheats' (set to 'OFF'), to avoid surprises (for example: The game hangs,...), 'por si te cargas algo' .

-mike_myers-

(C) 2003, Marcianitos.
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