Hello there, thanks you for the suggestions!
Gun are awesome to use and would be a strong weapon to defeat enemy. However minigun will be a over-powered weapon for the current version and affect the game play balance, i may only add it to game when there are very strong enemy like boss.
I have also think about adding vehicle. Giving it ability to carry more items for player seems to be a good function. I will consider implement the relevant function.
Respond to the question:
1. Yes, there will be new monster, new sex animation, and new area in v0.1.0.
I also updated a lot of things in that version :3
2. It is one of the function in character customize system. Player can decide their character genitals type.