Flying

Flying is an intrinsic property. The effects of flying are:


 * You can pass over pits, holes, trap doors, squeaky boards, bear traps, water or lava safely. (Pits and holes in Sokoban will still trap you.)
 * Land mines have a chance of not being triggered, and will not wound your legs.
 * Improved chances of avoiding death by drawbridge.
 * You can move freely over ice or on the Plane of Air.
 * Wounded legs do not reduce your carrying capacity.
 * No ill effects from descending stairs when encumbered, fumbling or punished.
 * You are out of reach of xans' attacks.
 * You escape the dungeon rather than dying by level teleporting to levels between -9 and -1.

You can acquire this property by polymorphing into a flying monster:


 * killer bee
 * queen bee
 * winged gargoyle
 * mind flayer
 * master mind flayer
 * homunculus
 * lurker above
 * xan
 * couatl
 * titan
 * jabberwock
 * wraith
 * succubus
 * incubus
 * balrog
 * any monster represented by v, y, B, D, E, or V.

You can also fly by riding a flying monster:


 * couatl
 * ki-rin
 * jabberwock
 * any monster represented by D.

There are some flying monsters which you cannot polymorph into:


 * Angel
 * ki-rin
 * Archon
 * Vlad the Impaler
 * Medusa
 * Wizard of Yendor
 * ghost
 * shade
 * Juiblex
 * Yeenoghu
 * Orcus
 * Geryon
 * Dispater
 * Baalzebub
 * Asmodeus
 * Demogorgon
 * Death
 * Pestilence
 * Famine
 * Mail daemon
 * Djinni
 * Minion of Huhetotl
 * Ixoth
 * Nalzok

Note that flying is different from levitation, and monsters represented by an levitate rather than fly, even though they possess the M1_FLY flag in the source code.