Very well designed, and quite invigorating. The short length of the game REALLY leaves you wanting more, a proper story has been set up and the game is immensely fun while it lasts. Just imagine the possibilities for a full-length story, more bosses, and character arcs.
i hate when you're trying to like put extra things there to make your base look pretty and you get all interrupted because you win it makes me wanna die m8
for OE4 i suggest making more music tracks maybe? there are only a few on this one, and i would love to see more for the next game. also maybe make a high level multiplayer, med level multiplayer, low level multiplayer and custom level? sometimes people fight eachother who are way overpowered. just a suggestion tho