Dragon Warrior IV (NES)/Regional Differences
This is a sub-page of Dragon Warrior IV (NES).
The churches became "Houses of Healing", with their symbol changed from a cross to a five-pointed star, and the priests became "shamans" and lost their crosses.
Grave markers were changed from crosses to tombstones.
The entrance to the Royal Crypt lost its cross, leaving it rather nondescript.
The symbol on Cristo's hat was edited, and for some reason he was made to blink constantly.
The casino girls lost their bunny ears and tail, had their hair color changed, and their legs shortened by a pixel.
Vivian, one of Alena's opponents in the Endor tournament, also lost her bunny ears and tail.
In addition to preventing random encounters on the world map, Fairy Water (called "holy water" in DQ4) can be used in combat to inflict a small amount of damage to one enemy. In DQ4, it works on any enemy, including metal slimes and their ilk. In DW4, like in DW3, it only works on enemies that are vulnerable to the Expel spell--mainly undead and demonic enemies.
The Japanese version showed "The End" written by a quill pen. The USA version is simply blue letters saying that.
A number of bugs in DQ4 were fixed in the US release.
Terrific Blow Frenzy
If you try and fail to run eight times in the same battle, then all physical attacks by all of your party members will become terrific blows for the duration of the battle. In random battles the fourth attempt to run always succeeds, so this is only possible in boss battles. The reason it happens is because the counter for how many times you've tried to run and failed is packed into the same byte as several other battle flags, and in DQ4 there's no check to prevent the run-attempts counter from overflowing its bitfield. When you try to run eight times, the run counter overflows into the bit corresponding to the "party's morale is boosted" effect of the Chance spell.
Casino Price Overflow
If you try to buy an amount of casino coins that would cost more than 16777215 gold, the price will overflow and wrap around. Most famously, this bug makes it possible to buy 838861 coins for only 4 gold in Chapter 5. In DW4, the price of casino coins caps at 9999999 gold (which is more than the game lets you carry) and does not overflow.
Invisible Balloon Sequence Break
If you sail to world map coordinates 0, 0 (in the ocean northwest of Stancia) before obtaining the balloon and press A, you'll board an invisible balloon, enabling massive sequence breaking. The invisible balloon will return to its original location when you enter a town, castle or dungeon.