[marvlandj]+ Marvel Land - Cheats don't work.

[airdragod]

Marvel Land

The Invincibility, Infinite Time, Infinite Lives, Infinite Dragon Tail (Shadows), and Infinite Dragon Wings Time cheats don't work.

Could someone please help me?

[jman]

The cheat codes for marvland work with official MAME 0.251 + cheat database 0.245 though.

Check your MAME and cheat database version. Because current MAME no longer support "marvlandj".
According to "http://adb.arcadeitalia.net/dettaglio_mame.php?game_name=marvlandj", "marvlandj" was supported in 0.133u1 and renamed to "marvland" in 0.236.
If your MAME is older, new database may not work.

[airdragod]

Thanks! Picked an older version of MAME and the cheats work fine!