Algodoo

Glasses (Glass, Pearl) They have springs on their elbows for more power.
Medals (Gold, Silver, Bronze) They have a magent to catch other rivals.
Transparents (Helium, Boo) They are light weight so they will have a chance.
Freezies (Ice, Bloody Ice) They have no friction so they can slide.
Bouncies (Rubber, Trampoline) They are bouncy for something.
Frictions (Steel, Xanatic) They have fricition for sliding down poorly.
Heavwieghters (Stone, Rock) They are heavyweight for landing hardly.
Textures (Wood, Palm) They can't bounce because they can break you know.