Level1: (0:33)
Level2: (2:05)
Level3: (4:27)
Level4: (9:02)
Level5: (13:17)
Level6: (17:20)

Level7: (0:00)
Level8: (1:16)
Level9: (2:31)
Level10: (4:20)
Level11: (7:19)
Level12: (10:25)
Level13: (13:49)

Level14: (0:00)
Level15: (3:04)
Level16: (8:14)
Level17: (12:31)
Level18: (14:21)
Level19: (18:06)
Level20: (19:58)

The achievements are fairly self-explanatory and most will unlock as long as all bones are collected in each level. Here are any that may need additional work/explanation:
Score one for the enemy! (Go through the goal while holding the ball.)
There is a ball close to the end of level 16. Take the ball with you through the goal. See the Part 3 video for how I did it.

He can play ball, too. (Put a ball through the goal.)
This is similar to the above “Own Goal” achievement, except the ball should roll into the goal on its own. It can also be done on level 16 as well as Level 11.

Head through the goal together. (Clear a stage while holding onto a trolley.)
I was able to do this on the final level, 20. See the Part3 video for how I did it.