The internet lies: cheat code edition

OK, Deep Fear...

Left, left, right, right, down, up, A+C+Y+L at the title screen. You'll hear a sound effect. Now start the game, press Start, and then press L at the pause menu.

When you return to the game, you'll have a new line on the HUD indicating your position.

 

I can elaborate on SONICCD.INI's secret users now.

User Debugger has the following effects:

• The second Windows menu resource will be used instead of the first. It's the second one that contains the Stage and FUNC menus.
• The requirement to have the CD-ROM in the drive is turned off.
• The User variable of the game's current state gets the value 2. This doesn't do anything.

User Fujiwara has only one effect:

• The User variable of the game's current state gets the value 1. This causes Sonic to lose only half of his rings instead of all when hit.

User Satoh has the same effects as Debugger, except that the User variable of the game's current state gets set to 128 instead. But this doesn't do anything either.

EDIT: This information is now on the wiki as well!

 

Nice work with the half rings discovery (or rediscovery? it wasn't in the wiki at least, until you added it!), I completely missed that one. Out of curiosity, did you trace the code or just notice it through testing?

 

I identified the memory region that lpKeepWork points to in the decompilation, which is how I was able to tell that lpKeepWork->User was being modified. Then I ran a text search for "User". It lead me to this line in RING::flyringinit. Then I just read the code:

Code (C):

1. if (lpKeepWork->User & 1) {
2.  
3.  
4.   plring /= 2;
5. }
6. else {
7.   plring = 0;
8. }

 

Awesome, here's proof that the code never lies! :-)

 

It'll be in our "warehouse" in a few minutes... ...

 

Speaking of obscurities, here's a debug mode code for Eiyuu Shigan: Gal ACT Heroism.

• Press A to bring up the menu
• Hold start and enter ←→X↓↑Y↑→↓←Z

Pictures here!

 

Returning to an ancient discussion, I was mucking around with hydro thunder this morning. As @Black Squirrel found, the internet is all over the place with this one but it's actually quite simple.

Nothing works on US rev 0

On US rev 1 & PAL, inputting name as ?PB unlocks everything (medium, hard and bonus tracks, medium, hard and bonus boats)
Inputting name as ?DL unlocks the medium tracks and boats only. This is interesting as it implies there might be another intermediate password for hard but not bonus as well.

It doesn't matter whether you finish 1st, 2nd or 3rd (any lower down and you'll run out of time anyway), it always works.

EDIT - got it! ?AC gives you medium and hard but not bonus. I just looked at the initials of the QA team on gamefaqs :-D

EDIT 2 - I've added them in and removed the 'missing codes' tag
Hydro Thunder/Hidden content - Sega Retro

 

Here is an undiscovered one for Dungeon Master Nexus: pause and enter L, R, X, Up, C, Left, L, Right.

The debug menu let you skip levels, clip through walls, and more.

 

Because it's obvious to intuit many websites aren't supported on Dreamcast browsers. You aren't going to watch YouTube on a Dreamcast, for one.

 

One important thing any Dreamcast web browser will do, even when offline, is allow you to change the Dreamcast internet settings, which is saved directly onto the console itself but annoyingly can't be changed from the console dashboard. This might not seem like a big deal, unless you're trying to get a modern dial up solution like DreamPi working and can't edit your dial up settings otherwise.

Another thing RE: Dreamcast planet web browser specifically is that IRC works, all versions of planetweb have an IRC client built in. the URL to use the IRC client is as follows: pwchat://irc.badnik.chat:6667/

 

Adding a little more to this:

This first code must be entered for the others to work and it specifically unlocks the mech select menu right from the start.

The second code enables Invincibility. The 3rd one unlocks all mechs and powerups, but your save data must be empty for it to work. This code makes no sound when entered correctly. The "click" sound always plays when selecting a save slot.

Additionally, while at the mech select screen, pick any number from 1-7, hold L+R and press Start. Then begin the mission to start on the mission that corresponds to the number you picked.

 

put all this on the wiki ❤️

 

You can cheat a bit by using Mame's pre-prepared software list. There's a karatedo in there that runs and accepts input. Not clear if it's taken from the Saturn disc or elsewhere though, but the title screen matches up