1. I do already have plans to improve AI and colliders, I'm waiting to get the full version of the AI plugin used so I can use the full capabilities of it. The colliders I need to remake from scratch but I'm pretty sure I now know where to fix them so enemies and the player won't get pushed out of bounds.
2. I also realized the clarity of obstacles when I play tested it myself and will remake them (brighter / better outlined) so it's a lot more obvious where you can walk and you will know what to avoid/play around. There will also be more obstacles in general.
3. Character customization would be cool though I'd rather just have the one character especially when I animate him into scenes. It's a lot simpler and less work, so I don't end up in development hell. My priority is making a fun functioning playable game right now. All of the art assets used were created by me so it does take quite a lot of time to make them.
4. This is a great idea, I prefer challenging games but since it is an NSFW game many people will probably not want to get frustrated just to get the rewards. I will add it in the future.
Thank you for the feedback this does help me get a better direction of where I want to take this game!