Kinda cool.
Problem 1:
Energy delpetion. Your energy is sucked away almost 100% even if you hardly strike... so most of the time you're walking away instead of fighting. You also lose your energy when you're attacked. When facing a lot of enemies at once, or even just a couple giants, they take turns smacking you, and stunning you so you cant do anything, and your energy remains 0.
Problem 2:
Not a lot to do. Add more enemies, Easy to kill critters, hard to kill critters. People and giants are cool, but the game would span out further and better.
Problem 3:
When we have no energy, we run. We have a shield... but it doesn't do anything. A shield mechanic would make this about twelve hundred thousand feet deeper.
I played it for a while, dont get me wrong it was fun. But needs a lot of work. Good job, good luck, and I'd totally play this if it were deeper.
I killed the shadow giant at level 6.