Well...This sounds like a lot but it isn't but I'm here to request not 1 but 3 scripts request.
1st Script
This script will be difficulty settings in my quest, i plan on having two different modes Normal and Hero Mode, On Hero mode the enemies will do twice as much damage, and if so the bosses behavior will change slightly (You don't have to add that last part if you don't want to).
2nd Script
This script is a little trading sequence, you get a certain amount of an item to receive rewards. (In my Case, the item is Magic Crystals)
5 Magic Crystals you will receive a reward
10 Magic Crystals you will receive a reward
20 Magic Crystals you will receive a reward
30 Magic Crystals you will receive a reward
40 Magic Crystals you will receive a reward
50 Magic Crystals you will receive a reward
that's all the reward
3rd Script
This one is similar to the last one, but this time you receive a amount of an item to open up a bonus Dungeon. The amount of the item link needs is 20. if link doesn't have all 20 of the item then the Dungeon can't be accessible. if link does have all 20 of the item, the dungeon can be accessible.
That's all.