The HUD allows you to choose 21 sphere types or turn off. (These spheres are only available in the rezable area)
You can also use voice commands on channel 99, as follows:
/99 detach /99 nr (Neon Reflection) /99 nrn (Neon Rings - Narrow) /99 nrw (Neon Rings - Wide) /99 nr2 (Neon Rings 2) /99 nr3 (Neon Rings 3) /99 nr4 (Neon Rings 4) /99 nri (Neon Ribbon) /99 nri2 (Neon Ribbon 2) /99 nri3 (Neon Ribbon 3) /99 nri4 (Neon Ribbon 4) /99 ng (Neon Galaxy) /99 nd (Neon Dots) /99 ns (Neon Stars) /99 nst (Neon Stripes) /99 np (Neon Phoenix) /99 nf (Neon Flowers) /99 nfl (Neon Floral) /99 no (Neon Orb) /99 ndo (Neon Dots Orb) /99 nlo (Neon Letter Orb) /99 nsp (Neon Spread)

The HUD allows you to choose 17 types, 119 colors or turn the particles off.
First choose the particle name. (light pink button of the HUD) ("Medi Space", "Medi Ball" or "R Sphere" is only available in the rezable area)
Next, touch the color, rainbow or random button. (If you touch the color button, a menu will drop down allowing you to choose 117 colors.)
You can also use voice commands on channel 99, as follows:
/99 off /99 bigbang /99 bigbang2 /99 nova /99 cosmos /99 galaxy /99 galaxy2 /99 galaxy3 /99 explosion /99 radiation /99 radiation2 /99 dancestar /99 stardust /99 stardust2 /99 stream /99 meditation space /99 meditation ball /99 rainbow sphere /99 rainbow /99 random
Time: /99 time VALUE - changes the length of emitting time in seconds. (default time is 0) The command will look like this: '/99 time 0' If VALUE is 0, it emits particles eternally.
Color: /99 cd VALUE (decimal RGB) The command will look like this: '/99 cd 255 255 255'

The HUD allows you to choose 9 types, 9 colors, 4 emitting times or turn the particles off.
At first, choose color and emitting time of the particle with HUD. Then choose particle name. (light pink button of the HUD) It will start particles of your choosing color and emitting time.
You can also use voice commands on channel 99, as follows:
/99 off /99 star /99 stardust /99 cosmos /99 galaxy /99 galaxy2 /99 explosion /99 radiation /99 radiation2 /99 stream /99 white /99 pink /99 blue /99 red /99 green /99 yellow /99 cyan /99 magenta /99 rainbow
Time: /99 time VALUE - changes the length of emitting time in seconds. (default time is 0) The command will look like this: '/99 time 0' If VALUE is 0, it emits particles eternally.