After some more playing I came to the conclusion that It shouldn't give more ammo. With a wise of bunny hopping and sword, the ammo was always more than enough. I think the ammo supply is actually perfectly balanced.
I have found one fatal bug. In the map with two bloodbaths and multiple windows, I could get stuck in the window and never escape.
Now all this game need is a map and some more level variants, especially important landmarks like starting point, key, and portal rooms which only has 1 and 2 variants.
I have played your other games, but this one is the best.