28. Land's End
Head up one screen to the Massive Lands End Cliff, and do the Troopa Mini Game in 12 seconds or less to receive the Troopa Pin.
Follow the guide below to get the Troopa Pin. If you fall or fail to get to the top in 12 seconds or less, just jump back down and try again.
You want to jump almost right away from shell 1, straight away on shells 3 and 5, and almost right away again on shell 7. On the other shells, you need to wait for them to get into position as shown in the diagram below.