Make sure the Arcade Magic option is off, Press X to cast a spell, then enter the following series of runes:
Head Mode:
Mega, Rhaa, Mega, Rhaa, Mega, Rhaa Big.
Fire Bow:
Spacium, Aam, Mega, Spacium, Aam, Mega.
Level 10 character with 30 stat points and 200 skill points:
Mega, Mega, Mega, Mega, Mega, Vitae.
Level zero character with no runes and default stat and skill points:
Nhi, Nhi, Nhi, Nhi, Nhi, Vitae.
Power Sword:
Mega, Aam, Rhaa, Rhaa, Rhaa, Rhaa.
Reveal Map:
Nhi, Rhaa, Aam, Nhi, Rhaa, Aam.
Summon Perfect Warrior For A Challenge:
Mega, Mega, Mega, Aam, Vitae, Tera.
Unlimited Hit Points:
Mega, Mega, Mega, Mega, Mega, Kaom.
Wall Collisions Disabled:
Mega, Tera, Mega, Tera.
Use Heavy Armor Without Sufficient Strength:
Use the Bless spell and put on the heavy armor and weapons. When the spell ends, you can still wear the armor.