Challenges completed by Army

29th State

USA Map : Reach Iowa

38th State

USA Map : Reach Colorado

45th State

USA Map : Reach Utah

25th State

USA Map : Reach Arkansas

20th State

USA Map : Reach Mississippi

48th State

USA Map : Reach Arizona

11th State

USA Map : Reach New York

35th State

USA Map : Reach West Virginia

28th State

USA Map : Reach Texas

47th State

USA Map : Reach New Mexico

27th State

USA Map : Reach Florida

39th State

USA Map : Reach North Dakota

36th State

USA Map : Reach Nevada

Don't get Thwomped!

Blue, Blue Plaza : Go under a Radioactive Thwomp.

Get to the other end of the Arena

Blue, Blue Plaza : You'll find this area on your own. If you need a hint, check the title.

Yeah

The Real End : Drive straight for about 10 seconds in Time Trial mode

Monty Mole Trench : Complete the track in less than 2:40 in Time Trial mode, by falling at most 3 times

Monty Mole Trench : Complete the track in less than 2:05 in Time Trial mode, without falling

Not a challenge

Metal Arena : Go to any of the Cannon Ramps with King Boo

...so shy...

Metal Arena : Go in the middle of the Ring of Item Boxes with Shy Guy