Random Game Gear Cheat Related Stuff

System: Sega Game Gear
Game Title: Multiple

Here are some potential cheat info for a few Game Gear games.

Chicago Syndicate
Potential Cheat Mode

CHEAT MODE..;BASHING BOSSES..

 Potential Debug Menu?

Training     .    Start Game    .      Options     .   Sound is off   .   Sound is on    .   Music test     . Sound FX test    . Back to main menu.                  .  Hiscore screen  .  Wingame screen  .  Prison screen   .   Grave screen

Desert Speedtrap - Starring Road Runner and Wile E. Coyote
Contains the word 'cheat'.

Marko's Magic Football
Passwords:

CHEATMOD Infinite Energy
LEVELONE Level 1
PAVEMENT Level 3
RIVETGUN Level 5
JUGGLING Level 7
HAPPYJOY Ending

Strider Returns
Contains the word 'cheat'.

Superman - The Man of Steel
Contains the text: CHEAT MODE ACTIVE

Yogi Bear in Yogi Bear's Goldrush
Contains the text: CHEAT ENTERED

Defenders of Oasis

Test.<&Chapter 1.<:chapter 2.="2." 3.="3." 4.="4." 5="5" bchapter="bchapter" br="br" hapter="hapter" vchapter="vchapter">

Face Ball 2000
test 1 - test 6, possible debug menu?

Fred Couples Golf - Debug Mode

TEST:MODE:::::::::::::::::::::::::::::::::::::::::::::::Game:mode:::::::::::::::::::::::::::::::Course::::::::::::::::::::::::::::::::::Hole:No<::::::::::::::::::::::::::::::::players:::::::::::::::::::::::::::::::::sound:test:::::::::::::::::::::::::::::: br="br">

GG Aleste - GALVANIC GUNNER ALESTE

MODE  SELECT..:@ NORMAL..;  SPECIAL...F8  TEST MODE

Beavis and Butt-Head (U) [a1]
Contains the word "code".

Deep Duck Trouble Starring Donald Duck
Contains the text: SOUND TEST.

Edit:
Some cheats have been found from this, more info:
http://www.smspower.org/forums/viewtopic.php?t=10519