I gave a (fake) rage-fueled rant not too long ago about Junimo Kart a short time ago. It is, in a word, unfair. In two, soul crushing.
Journey of the Prairie King joins Mega Man in an exclusive club of my creation. Only beat it through cheating...sort of...there's a way to create save-states. I'm not aware of an easy "2 stick shooter", and Journey is no exception.
Oh, but no save-states in Junimo Kart! If you have 1.6, that's very good. I tip my hat to anyone that was able to beat that cruel mess before the update. The creation of the mushroom stage should be considered a class A misdemeanor AT LEAST.
That being said, I made it to the last level one time and as much of an unfair, broken mess that Junimo Kart is, I failed because of an old fashioned choke. Like
@Njin said, keep at it and you'll get it. But, I'm probably not going to be able to pull off Junimo Kart until the update for console. At the very least beating it while keeping my sanity intact...
Edit: I remembered that the "save-states" for Journey is for the Fector's Challenge trophy. My bad. The mere mention of these games make me lose all rational thought.