Yeah it can be a bit difficult in that regard. We were hoping to have some time to explain the mechanics a bit as a lot of people don't realize that as you collect items "rocks" they act as your ammo and shield to take damage. We had also planned to add a better UI to indicate that, though ran out of time to add that. The plan is to finish out this as a full game. That should be a lot of fun to add all the things that we had planned in the if we have time list :)