This is attainable in Goat Ville. Having the Angel Goat + Double Jump mutators equipped will allow you to navigate more easily, so they are recommended. Make your way to the construction site, and next to the road you'll see some blue and red containers. Jump on top of those, and then jump on top of the roof of the construction site right next to them. You'll notice 4 total fans on this roof. Now your goal is to jump and ragdoll (
) into the fans, then go for all 5 trampolines in one combo, without landing or using the same one twice.
1 - At top of the construction site
2 - Upper level of the swimming pool
3 - Lower level of the swimming pool
4 - On the grass near a blue house and red house
5 - On the lawn of the house you spawned near
You can activate slow motion by using
, although momentum may be harder to gauge in slower time.