Hi Clay-Taeto, I played your game until the end, and found that while the skeletons fought back hard, I could easily dispatch them when I had something solid to hide behind.
The first boss added a level o difficulty by not registering any hits from the side, while the second boss stopped running around after a while, so I started shooting at it from a distance, then closed in and continued hammering him with the 3 bullet spreadshot from up close :)
Kudos to making the player explore all the rooms to find all the heart powerups and spreadshot abilities :)