Enter in the password as your file name when starting a New Game.

Effect	Password
"A Kinda Funny Mask"	TEAMFAT
"Dominus" Weapon	Akuma
"Hey I'm Grump"	Egoraptor
"I'm Not So Grump"	Grumps
"The-Baz Mask"	BULLFIGHTER
Big Head Mode	BIGHEAD
Big Mustache	AWESOMEVIDEOGAMES
Clockwork Blade	JEPSON
Darkness Descends	ALPHAOMEGASIN
Dumping Helmet	INTHEBATHROOM
Dungeonite Sword	DUNGEONITE
Egg Helm	EGGFARM
Final Hour - Weapon	TheSpeedGamers
Mega64 Helmet	Jarvis Meower
Plague Doctor Face	swimmingbird
Sega Power Strip Weapon "Gamesack"	8MEGAPOWER
Sicilian Slicer	STEPHENPLAYS
Space Helmet	chuggaaconroy
Unlock Hard/Nightmare modes from the begining.	NIGHTMARE
Vine Sword	SPONGYVINE