i found alot of cheats but dont understand directions

1.Unpack the .reg file into your game directory, execute/import it,
then run game as usual and you will have access to all gamemodes/levels.

2.Start the game with maxpayne2.exe -developer, then press ~ to open
the console.
Give one of the following commands:

clear - Clear console screen
clr - Clear console screen
coder - God mode, all weapons, health, inifinite ammo
god - God Mode
mortal - disable god mode
getallweapons - Get all weapons
quit - quit game
showfps - Show fps rate
showextendedfps - Show extended fps rate
getberetta - Get beretta with 1000 ammo
getbullettime - Put player into bullettime
getcoltcommando - Get coltcommando with 1000 ammo
getdeserteagle - Get Desert Eagle with 1000 ammo
getdragunov - Get Dragunov with 1000 ammo
getgraphicsnovelpart1 - Fill in part of the story line
getgraphicsnovelpart2 - Fill in part of the story line
getgraphicsnovelpart3 - Fill in part of the story line
gethealth - Get 1000 health
getingram - Get Ingram with 1000 ammo
getkalashnikov - Get Kalashnikov with 1000 ammo
getmolotov - Get Molotov cocktail with 1000 ammo
getmp5 - Get MP5 with 1000 ammo
getpainkillers - Get 1000 painkillers
getpumpshotgun - Get pumpshotgun with 1000 ammo
getsawedshotgun - Get sawed-off shotgun with 1000 ammo
getsniper - Get sniper gun with 1000 ammo
getstriker - Get striker gun with 1000 ammo
jump10 - Jump 10 high
jump20 - Jump 20 high
jump30 - Jump 30 high
showhud - Turn on HUD
help - Much more debug commands



3. HOW TO GET MONA NAKED IN MAX PAYNE 2:
-------------------------------------
1) Make a shortcut to the game's exe file.

2) Add the following line to the Target field:

-developerkeys -screenshot

So if your game is installed in C:\Program Files\Rockstar Games\Max Payne 2\ it will look like this:

"C:\Program Files\Rockstar Games\Max Payne 2\MaxPayne2.exe" -developerkeys -screenshot

3) Start a new game or load a saved game.

4) Use PAGE UP/PAGE DOWN to scroll through models. You will get Nude Mona quicker if you use PAGE UP.

5) Pressing F3 will allow you to move the camera around freely. Press F3 again to set the camera and regain control of your character.

6) Pressing F10 will make a screenshot in your MP2 directory.



4.Trainer Notes:
+1 ) Unlimited Ammo
+2 ) Unlimited PainKillers

Note : Start Game, ALT+TAB to go outta game, then use trainer.

Download : Max Payne 2 Trainer +2


5.
Notes:
------

Unzip/Unrar trainer into your game directory, then start trainer with "pztrain.exe", and finally start the game. During gameplay toggle trainer options by pressing the following key combinations:

Enable Disable Option

Y Infinite Health
U Infinite Ammo
I Infinite Bullet Time
B Back to Normal

Download : Max Payne 2 Trainer +3