all great ideas! Originally we wanted to include a death system where your previous lives would help keep you alive longer until finally you reach the ending. We didn't have enough time though. Another idea we had was multiple battle fronts in the heart, brain, lymph nodes, etc. And you have to track the battles and keep them in check in levels/waves of different poisons being tested. We stopped that early since it was complicated though 😅
Thank you for your compliments! As for money I can't speak for the rest of my team but I feel video games should be on a free but donate to support and get some perks basis ie: patreon.