Cheat mode
Press X to cast a spell, then enter one of the following series of runes. Note: Enabling some codes may not allow the game to continue normally.

Wear heavy armor without sufficient strength
If you have the Bless spell and an Ylside armor, you can put it on them even if you are in the 10th level of Strength. Use the Bless spell (your level of magic is important at this point) and put on the armor and weapons. When the spell ends, you can still wear the armor.