1. 6sc in MR
2. 12sc
3. 18sc
4. 24sc
5. 24sc
6. 24sc
7. 24sc
8. 24sc
9. (2sc,1dec)*6 (18)
10. (4sc,1dec)*3 (15)
11-29. 15sc (Fold it leg with 7 sc)

Arms

1. 6 MR
2. 12sc
3. 18sc
4. 18sc
5. 18sc
6. 18sc
7. 18sc
8. (1sc,1dec)*6 (12)
9-28. 12sc (fold it arm with 5sc)

Ears

1. 6 MR
2. 9sc
3. 12sc
4. 12sc
5. 15sc
6-14. 18sc

Body

1. 10 MR
2. 5 popcorn
3. 20sc
4. 10 popcorn
5. (1sc,1inc)*10 (30)
6. 15 popcorn
7. (2sc,1dec)*10 (40)
8. 20 popcorn

9. (3sc,1inc)*10 (50)
10. 25 popcorn
11. 50sc
12. 25 popcorn
13. (23sc,1dec) (48)
14. 24 popcorn
15. 48 sc
16. 24 popcorn

17. (6sc,1dec)*6 (42)
18. 21 popcorn
19. (5sc,1dec)*6 (36)
20. 18 popcorn
21. (4sc,1dec)*6 (30)
22. 15 popcorn
23. (3sc,1dec)*6 (24)
24. 12 popcorn
25. (2sc,1dec)*6 (18)

Congratulations, popcorn lamb amigurumi pattern is ready, 

Enjoy!