Completed this today, unlocked the super cool custom character ... and now there's nothing left to really use him for. =\
Agreed that Achievements based around playing the game through four full times make the game less fun. I played Story, loved it, played Free Play, loved it more, played Challenge, disliked it, and then slogged through Super Story trying to beat the time limit (I didn't know at first that you only needed to beat the 100,000 stud mark) hating every slow down, cut scene while the clock ticks, and CPU assistant being boneheaded. Or the 20 second delay after you destroy the last Star Destroyer as it waits to let you move on... *shrug*
Great game, but they lost an advocate when they made me level grind like that. It's OK to just be a great quick game. Now I've learned that playing through levels is grinding and frustrating, and it's not a fun game to me anymore.
I'll now half-heartedly look forward to the next Lego game and really really hope that they don't have further achievements based around playing each level a minimum of four times. =P
aka Preppy - http://zachd.com/mvc2 (tons of Marvel vs Capcom 2 vids)
speaking for myself only