Atari Jaguar Doom hacking notes

[Saturn]

Found a way to unlock/view the full map and show all things on the level when you press 9. This is right after starting the game. Haven't even moved.
Just... awesome

[TrekMD]

OH, that's cool!  So, it only works if you start and haven't moved?

[Saturn]

No it works regardless. Was detailing not having moved to illustrate the tiniest portion of map had been revealed in the regular way but the rest was visible as darker lines (having yet to have entered those areas).
I did this by adjusting a flag/variable in the source code then compiling it. Very cool that it's in there and makes me wonder if there's a "yet unknown" key sequence to enable it.
Either way, it works

[TrekMD]

Really cool.  I wonder why it wasn't just made available. 

[Saturn]

Also finally found a way to hack the power of the shotgun. That was the whole reason to explore the code in the first place. It always felt like up to 3 shots at point blank range to take down a Pinky Demon was a little much. Here, a single blast takes down a Hell Knight

I may tone it down for a cart version for myself but it's absolutely amazing at the moment

https://youtu.be/iIoHbeHuG8o

[TrekMD]

What did you do to that gun!?!?!  That's like "ultimate" firepower!

[Saturn]

Ha, found its variables and changed them from a 'random 3+1 *4' to a 9+9 *18
Really kicked it up! Take down the most powerful enemy with one shot. I love it!

It's way overkill but fun to blaze through in a wake of blood and body parts :p

[TrekMD]

Overkill?  No kidding!  LOL

[Saturn]

I modded the cheat for getting items/ammo/keys. I never liked getting the keys with everything else but wanted more ammo so I cranked it to 999 and ditched the keys altogether. Also, 200% Armor sucks so I upped it to 999%

before




after

[TrekMD]

You'll need to change the title of the game to "DOOM'ed I'm Not!"

[Saturn]

You'll need to change the title of the game to "DOOM'ed I'm Not!"

Ha, love that

[Saturn]

Here's a better video including the hacks I did today. From the description on yt:
This video is done on a better pc using Project Tempest and FRAPS without slowdown. Still a bit hard to control using a Jaguar controller via USB since PT runs so fast but here's 3 source code hacks I've done in the last three days.

The first is at 6 seconds when I open the map screen. I enabled Automap and show all Things (two cheats that have never been discovered afaik).

The 2nd cheat is at 17 seconds where I enable the Very Happy Ammo Cheat = Pause, # + Pause (all keys, weapons, ammo, armor, and health) I never liked getting the keys so in MY version, I removed them but cranked up the armor bonus to 999% & ammo to 999 each. That was more of a joke though..

The 3rd cheat is the insane power of the shotgun. You can see firstly at 33 seconds after I warp to level 8 and open the door. The blast tears through the back of some poor zombie schmuck and hits the explosive barrel. A few seconds later at :52 the Hell Knights eat it with one shot each. Awesome

https://youtu.be/w2y2QrjWyqc

[Saturn]

Found the file that has the map names. I put "test" in front of each and compiled it. Works like a charm

[Saturn]

I've added proper map names and custom endings for each rom. Compiled it in the source code and it worked like a charm:

rom 1
"New Depths",
"Deadly Path",
"Base Entrance",
"Bastard Land",
"Blast Doors",
"Into the Bowels",
"Left For Dead",
"Secrets Abound",
"Security Stronghold",
"Taking the Base",
"Greenhouse Effect",
"Nuclear Station",
"Out of the Frying Pan",
"End Game Sequence"



rom 2
"Into the Fire",
"Base 2 Entrance",
"Incubation Chambers",
"Imminent Pain",
"Hell Awaits",
"Merciless",
"Left For Dead 2",
"Watch Your Step",
"Havoc",
"Close Quarters",
"Dungeon Maze",
"Bloodletting",
"End Game Sequence"



rom 3
"Behemoths",
"Base 3 Entrance",
"Infirmary Horror",
"Its A Trap",
"Raging Titan",
"Burnt Offerings",
"Prison Break",
"Cesspool Hazards",
"Sewer Escape",
"Halls of Peril",
"Dis Membered",
"The End Is Nigh",
"Grand Theft UFO",
"End Game Sequence",



rom 4
"Shoot the Glass",
"Base 4 Entrance",
"Segue Interrupted",
"Pink Is the New Dead",
"The Unforgiven",
"Tower Massacre",
"Cross Into Madness",
"Clock Is Ticking",
"Kill Em All",
"Catacombs",
"Swarms and Titans",
"Battle At Mt Fuji",
"End Game Sequence"



rom 5
"Base 5 Entrance",
"Inner Sanctum",
"Demon Megaplex",
"Fortress of DOOM",
"Utter Chaos",
"Mountain Pass",
"Ruthless Agression",
"Enter the Arena",
"Ransacked Armory",
"Quick and Painful",
"Splash Damage",
"King of the Hill",
"End Game Sequence"



rom 6
"Swallowed In Hell",
"Base 6 Entrance",
"Trial By Fire",
"Evil Unleashed",
"Titan Offensive",
"Violent Pacification",
"Close Quarters 2",
"Full Scale WAR",
"Spill the Blood",
"Bloodshed",
"Weapons Hot",
"Annihilation",
"End Game Sequence"



rom 7
"Base 7 Entrance",
"Torture Chamber",
"Lava Basin",
"Wicked Fortress",
"Hell Is Here",
"All Hope Lost",
"After the Storm",
"Lethal Alleyways",
"Garrison Strike",
"Of Ash and Stone",
"No Turning Back",
"The Final Conflict",
"End Game Sequence"

[Saturn]

Finished another 12 map ROM last night. This one is epic.
Here are the map names and a shot of the end game sequence screen:

rom 8
   "Base 8 Entrance",
   "Nerve Wracking",
   "Cleansing",
   "The Deadpool",
   "Go Into the Gap",
   "On the Ledge",
   "Good Day To Die",
   "Killzone",
   "Into the Abyss",
   "North Seized",
   "Titan Outpost",
   "No Survivors",
   "End Game Sequence",

No Survivors is the finale for this and it's incredible. I'll post a video sometime as soon as I can record on a more powerful computer but some of the draw distance on this level is super long. The Jaguar handles it like a champ though. There's some lag here and there but it doesn't detract from the overall experience imo. It's crazy to be running along the stronghold wall between guard towers and turn to shoot a Cacodemon on the far side of the map that's almost just a dot it's so far away

Good Day To Die is another favorite. The place is overrun but there's plenty of ammo. Survival rate is in the toilet though The map is also incredible..



Also, I hacked Project Tempest to name it Project DOOM... as seen in the upper left of the screen shot