Get the five hidden Road Runner bird seeds in a level to unlock a bonus level.

Fast And Furry-ous 220km/h: Collect all the Road Runner bird seeds in the Warner Studios level.
Fast And Furry-ous 240km/h: Collect all the Road Runner bird seeds in the Paris And Louvre level.
Fast And Furry-ous 260km/h: Collect all the Road Runner bird seeds in the Yosemite Sam level.
Fast And Furry-ous 280km/h: Collect all the Road Runner bird seeds in the Area 52 level.
Fast And Furry-ous 300km/h: Collect all the Road Runner bird seeds in the Jungle level.