This is the default full shuffle mode. This is the most common mode used when racing and it's the same as doing a custom mode with all the flags enabled. See the next section for a description of flags.
This mode lets you pick and choose exactly what flags you want to use. The available flags are as follows:
Seed is a number used to randomize the game. If you want to generate the same game as somebody else for racing, you can enter an exact seed here. If you just want a fresh experience, leave this blank and the site will generate it automatically.
This randomizer shuffles around all 130+ items in Zelda 1. This includes the 10 dungeon staircase items (bow, raft, ladder, recorder, wand, red candle, magical key, book, red ring, and silver arrows) as well as all rooms' standing items and drops (including bombs, boomerangs, keys, 5 rupees, heart containers, maps, compasses, and triforce pieces). Other items, such as from the overworld, can also be optionally be added to the item shuffle pool as well.
However, there are some important things to note about the shuffling: