The mini-fridge in Travis' room at Motel "NO MORE HEROES" can be used to heal him, even though it's impossible to lose health outside of ranking matches and assassination gigs and Travis' health is always restored after completing or failing a gig. Both the game and its instruction manual still point out this feature regardless. This suggests that there were either plans for enemies to appear in the overworld of Santa Destroy that could harm Travis outside of his missions, or it was implemented purely for creative effect.