Any Ideas?

Uh, I think that the IGT works by the timer that is shown. So if you die, it will keep that time. Maybe even during transitions it keeps going? That's just my thoughts on it though.

I meant because my Record on Duck Mode 3DS, the Total Time is 596,56 Seconds, or 9:56 Minutes. The IGT shows a 9:04 tho. Doesnt make sense...