Type these in while playing:

jjammo     -  Get all weapons
jjbird     -  Bird assistance
jjcoins    -  Get coins
jjending   -  Return to main menu
jjfly      -  Helicopter ears/hoverboard
jjgems     -  Get gems
jjgod      -  God Mode      
jjinv      -  invincibility
jjk        -  Self destruct
jjlight    -  Fully light level
jjmorph    -  Change Character (Jazz, Spaz, Bird or Frog)
jjnext     -  Level skip
jjq        -  Quit to desktop
jjshield   -  Power shield
jjrush	   -  Sugar rush 
jjpower	   -  Power-ups

Thanks to Revolution readers Vladie, Bob V.D. Linden, Marten Veldthuis, Erik Nord,

Tomasz Czechura, David, and Felix & Jan!