Interesting concept.
Though if I were to give some advice, it feels like this game was built looks first rather than feature first - the map is huge, but the two button weapon switch implies there were more than two weapons planned.
For the future, I'd advice getting the mechanics down before working on the looks, and setting your priorities based on the 20 - 80 principle (20 % of the substance tends to take 80% of the time, so do the 80% of substance that take 20% of time down first - and things like map, looks ect. have a tendency to be the time eaters.)