TSR's Super Smash Bros Thread|SWITCH HYPE TRAIN NOW BOARDING

[TomGuycott]

I think that the orange bar actually is weight related. If I had to guess why the orange bar didn't appear full, it's probably because the cursor is on the first item, and the bright orange part of the bar is showing that item's space taken in your overall weight.

The levels do have me intrigued, though. If I remember correctly, Kid Icarus Uprising had something similar, but you found higher level stuff rather than it gaining experience and leveling up.