This challenge probably is not that hard so that is why it is called Moho party not Moho challenge... and I like typing Moho. But the last part of the challenge may give you a heart attack from too much AWESOME! (or rage I can't tell)
super easy: get 5 kerbals to Moho then, PARTY!!!
easy: get 10 kerbals to Moho and then, crash them into the sun after partying poor kerbals
medium: get 10 kerbals to Moho with 2 rovers (the designs of the rovers is up to you) and drive around make sure to bring ramps for the rover so you can have fun jumping up way in the atmosphere and probably killing some kerbals
hard: get 15 kerbals to Moho with 2 rovers and crash the rovers into each other with the other kerbals watching then if any of the two rover drivers died give them a proper funeral (just get a coffin to moho and land it by the kerbals done!)
why am I still playing this game super hard difficulty: get 25 kerbals to Moho with 5 rovers and a disco floor (make sure that the disco floor lights up!) and all 25 kerbals have to be able to stand on the disco floor (it doesn't matter if they can't move)then, you can truly PARTY!!!!!!
no mods that add parts or change the game you can have kerbal engineer and stuff like that and no cheats so get your fingers off alt f12 right now!