First, I drew a new UI (& put it in Unity). Still in progress, but I like it. The HP counter (left to the life bar) is useful, I should have make it sooner.
|On this screenshot, a color corrected version of the new UI (brighter & less contrasted).|
I also added some interiors. Here is the supermarket.
I programmed a shadow effect, like in Street Fighter Zero/Alpha (during super attacks), or Castlevania Symphony of the Night.