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+h1. Asura
+
+Asura is a program for generating a 'four esper' challenge run for Final Fantasy 6. Only the US releases for the Super Nintendo and all official releases for the Game Boy Advance are supported.
+
+h2. Usage
+
+bq. @./main.py rom.ext [seed|None[ A,List,Of,Spells]]@
+
+@rom.ext@ must be a ROM image of Final Fantasy III for the SNES (either revision) or Final Fantasy VI Advance (Japanese, US, or European releases).
+
+@seed@, if passed and not 'None', uses the time as of the running of the script for the seed.
+
+The final argument is a list of spells to prohibit. All official spell names are recognized.
+
+h2. Notes
+
+The spell selection mechanism uses two separate kinds of slots. The game itself supports up to five spells per esper, but for balance purposes each spell costs a number of points in the range [1,5], and each esper has 6 points to 'spend'. The following table enumerates the *current* point assignments (spells not enumerated cost one point):
+
+|_. Spell |_. Pts |_. Spell  |_. Pts |_. Spell |_. Pts |_. Spell |_. Pts |
+| Quick   |=.  5  | Arise    |=.  4  | Death   |=.  3  | Cura    |=.  2  |
+| Ultima  |=.  5  | Blizzaga |=.  4  | Graviga |=.  3  | Haste   |=.  2  |
+| Gravija |=.  5  | Curaga   |=.  4  | Hastega |=.  3  | Raise   |=.  2  |
+|         |       | Firaga   |=.  4  | Esuna   |=.  3  | Reraise |=.  2  |
+|         |       | Meltdown |=.  4  | Osmose  |=.  3  | Slow    |=.  2  |
+|         |       | Quake    |=.  4  |         |       |         |       |
+|         |       | Slowga   |=.  4  |         |       |         |       |
+|         |       | Thundaga |=.  4  |         |       |         |       |
+|         |       | Tornado  |=.  4  |         |       |         |       |
+|         |       | Flood    |=.  4  |         |       |         |       |
+|         |       | Valor    |=.  4  |         |       |         |       |
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