After seeing all of the categories, I was wondering why isn't there a 100% category where you complete all dungeons?

I understand but what's wrong with using real time? It's not hard to setup a timer and also not really that hard to retime it.

yeah, but since the game has a built in Full game time trial mode, we're using that. Also IGT tends to be the most accurate in general

Load times in between levels are inconsistent between devices and the ice and sand dungeons are bonus dungeons so at one point the main 4 was all there was. There may be additional bonus dungeons in the future, so we stick with what we've got and just complete the main 4 as "full game". Plus, the game is nice enough to already provide a game mode with in game time to complete the story mode dungeons, so if it ain't broke...