Yeah we thought about ways of healing but figured since there was respawning it was fine to forgo it. There is a boss at the end of the path that has more health than the rest and looks a little different. That's basically it. Besides that you can just kind of free roam and run around jumping on things for fun. Endless mode is particularly good for that as the enemies will chase you up on to rooftops and everything.
Thanks for playing, I'll check your game out too.