The game is pretty good. Scenery is very well put together the character feels smooth. However, even on the polished version, there are still quite a few issues.
Pretty hard to aim. The way it was coded makes the shot go higher than u might expect. Sound effects play unnecessarily such as jumping sound plays when pressing space mid jump. The map feels to big for its own good. There was many times I felt I was lost or I had lost an enemy as it wondered off somewhere. Med kits didn't work at all for me, both purchasing and using.
Overall, a decent attempt at a wave based game.