Press "F2" during game play. A small bar will appear in the top of the screen. Enter one of the following codes, then press "Enter".

Code	Effect
ubfoot	makes player run even faster.
ubgym	player never gets winded.
ubjack	stops weapon wobble.
ublightning	makes lightning.
ublight	makes player run faster.
ublocate	go to neares bird.
ubparnine	flages birds.
ubrainy	starts rain.
ubshowme	shows birds on map.
ubsnowy	starts snow.
ubthor	makes thunder.