You get 2 umpa lumpas. get 1 to jump on that 3 colored thing and get the other to make a robot. when you have one robot make sure you tell the robot making lumpa 2 wait. Get the green traps that look like grass when you throw them and wait till the robot goes into one . it will become a vine ball so pick it up with the Y button and keep throwing it until it plugs up a vent. Keep doing this until you've got all of them done. Then go up 2 the next level and keep repeating it. It may seem like it will never end but it is just because it takes patience. Also if the vine balls get stuck try throwing the gobstoppers at them.