checked-no =>Debug Menu: Pause the screen while Ecco is facing it (turn Ecco from left to right and he'll momentarily face the screen while turning). Now, press <A> <B> <C> <B> <C> <A> <C> <A> <B>. A debug menu will appear. =>Unlimited Health/Air: Pause the game while Ecco is facing screen, then press <A> <B> R <A> <C> <A> D <A> <B> R <A> and unpause the game. =>Hard Mode: When you start the game, break through the two shells at the top of the screen and swim through the tunnel to begin the game in hard mode. Level | Normal | Hard | 01 Crystal Springs |UEPMCVEB|WPHSAAFB| 02 Fault Zone |OZUNSKZA|CRNPTFZA| 03 Two Tides |KDKINTYA|QUKGZZYA| 04 Skyway |SZXHCLDB|MCMBPJDB| 05 Sky Tides |OZWIDLDB|OZMRKIDB| 06 Tube of Medusa |QSJRYHZA|ODFADPYA| 06.5 Aqua Tubeway | |KNHRKJYA| 07 Skylands |MULXRXEB|WXRDJYEB| 08 Fin To Feather |YCPAWEXA|UQTFBRXA| 09 Eagle's Bay |YCJPDNDB|QSNVMMDB| 10 Asterite's Cave |AOJRDZWA|EGAQRVXA| 10 5 Maze of Stone | |EUTQQQWA| 11 Four Islands |UOYURFDB|CZVQNHCB| 12 Sea of Darkness |UQZWIIAB|WFMYIDAB| 13 Vents of Medusa |MMVSOPBB|SHWZZNBB| 14 Gateway |KDCGTAHB|QKLLFPHB| 15 Moray Abyss | |YCFSBRAB| 16 The Eye | |AGNEXBTE| 17 Big Water |QQCQRDRA|YCBXONIA| 18 Deep Ridge |UXQWJIZD|UPODMUQD| 19 Hungry Ones |WBQHMIUE|YOHVUVLE| 20 Secret Cave |CHGTEYZE|SPKHKISE| 21 Lunar Bay | |WTHXKISE| 22 Black Clouds |GBGRLILE|USKIKDOE| 23 Gravitorbox |UIXBGWXE|WNQWZMME| 24 Globe Holder |SBFPWWJE|MIPGDOME| 25 Dark Sea |MXURVMLA| | 25.5 New Machine | |GOSTCXJA| 26 Vortex Queen |OKIMTBPA|OOSFBXAA| 27 Home Bay |CSNCMRUA|QNSGAPGA| 28 Epilogue |CEWSXKPA|AXBGKHBA| 29 Fish City |SGTDYSPA|WKGETHCA| 30 City of Forever |WSSXZKVA|WQHFTZHA| Secret Password |AVQJTCBA|