Here is my new trial: Ice cream.
Its nothing crazy (Im working on crazy sequel of this ^^), its just intermediate trial, with maybe 2 - 3 crazy parts which i believe you can do in 20 minutes for first play ^^.
AT: 37:07.76 , good run can be about 20 minutes ^^
Coopers: 2794C
Difficulty: Intermediate
Have fun and good luck!