Retro Game Challenge Nintendo DS Cheats

Full Health: Haggle Man
Press: Down Right Up, Left, B, B, B, B, A, A, A, A, at Pause Screen.

Scrolls Appear: Haggle Man
Press: Up, Right, Down, Left, A, A, A, A, B, B, B, B, at Pause Screen.

Hard Mode: Cosmic Gate
Press Down, Down, B, B, A, A, Start, at Title Screen.

Ship Power-Up: Cosmic Gate
Press Up, Up, A, A, B, B, at Pause Screen.

Infinite Time: Haggle Man
Hold Up and Left, then press A + B, on screen before any level.

99 Lives: Haggle Man 3
Press: A, B, A, B, Left, Right, Left, Right.

9999 Gears: Haggle Man 3
Press: B, A, B, A, Right, Left, Right, Left.

Stage Select: Haggle Man 2
Hold A, then press Up, Up, Right, Right, Right, Down, Down, Left, Left, Left on title screen.

Scrolls Appear: Haggle Man 2
Press: Down, Up, Down, Up, A, A, B, B on pause screen.

Full Power: Haggle Man 2
Press: Up, Down, Up, Down, B, B, A, A on pause screen.

Continue from level you died on: Haggle Man 2
Hold Left, press Start on Game Over screen.

Rally King Codes
Enter these codes at various points to unlock their effects.
#. Code: ----- Result:
1. Select + Left on title screen ----- Invincibility
2. Hold Select, then press Down and Right on title screen ----- Make Rival Cars Disappear
3. A, B, A, B, then Up + Select on title screen ----- Start at Course 2
4. A, B, A, B, then Left + Select on title screen ----- Start at Course 3
5. A, B, A, B, then Down + Select on title screen ----- Start at Course 4

Invincibility: Star Prince
Hold Up and press AAA, then hold Down and press BBB, on title screen

Continue from level you died on: Star Prince
Hold Left, press Start on Game Over screen.

Alternate Ending
An alternate ending can be seen if every stage of is finished within 5 seconds or less remaining on the clock. This also applies to Haguruman 2.

Unlock Soundmode
Clear all story challenges: Game specific challenges and earn the "Clear" mark for all games.

Guadia Quest - "Beat" the game without beating the game
This trick will let you see the credits of Guadia Quest without having to go through the entire game, thus earning you the medal that recognizes your completion of the game (for Arino's final challenge). First go to the Mausoleum (the path to get to the Mausoleum is located east of Centraan between some mountains and the ocean; you will need to enter the path from north of the mountains). After you go into the Mausoleum, walk nine steps up (you will be in the top left corner). Then press "A" to open the menu and select "Look." You will discover hidden stairs. Talk to the man below and answer all his questions with "yes" and he will show you the credits of Guadia Quest.

Cosmic Gate Special Stages
A set of special stages can be accessed by playing on hard mode and activating the warp gate in stage 64. Activating the gate will take you from stage 64 to stage EE which continues through all of these stages: EF, F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA, FB, FC, FD, FE, FF, and finally 00 which upon completion will loop you back to stage 1 again.

Warp to final level in Cosmic Gate
In the first stage, fire 64 shots without hitting any enemies. A warp gate will appear that will take you to the final stage.