walkthrough at (in order) http://www.youtube.com/watch?v=lIRKB4bXoY4
http://www.youtube.com/watch?v=tDR0_XZXhFk
http://www.youtube.com/watch?v=gEAR1he-Lwg
http://www.youtube.com/watch?v=lgepI2QkckA
http://www.youtube.com/watch?v=Uh0q9xk-Dho
http://www.youtube.com/watch?v=ld6x5OBfgDE
http://www.youtube.com/watch?v=iIdVJ1_mjno
and http://www.youtube.com/watch?v=w-Hkxn_aYFY
+ if this helped you get the imposable achievement
people, there shouldn't be a fast forward on/off button because if there are bloons that are about to exit and you need to put out spikes and a fast forward button is on then you will have less time to get the road spikes out and the bloons might get away but if there wasn't a on/off fast forward button, you might have got the road spikes out on time. + if you agree