Controls were a bit hard to grasp at first but after a bit it felt more comfortable. I don't know about you said the game being easy though because I died a few times before even getting to the boss lol. Perhaps the split guns make the game easier but I was just using the straight guns. Maybe making the guns unlockable somehow instead of having them available at the start could be better.
The visuals and sounds were definitely fun.
Anyway an enjoyable experience nonetheless. Good job!