Loved the game. I would love to suggest a few things. I see mention of a cum limit. I think if she reaches the maximum limit, it would eventually turn into a cum inflation birth animation (similar to the eggs) or birth one of the cum/futa monsters. Another thing I think there should be two other birth animations, one lying on the back and one squatting. I would love to see the stomach get larger with the increase of cum/eggs.
I have an idea for another insect. A mosquito that lays smaller eggs. It could lay eggs in the breasts or directly in the womb/bladder. The breasts would eventually grow larger till they eventually birthed larvae out of the nipples.
I had also read a previous message about police. I would go even further and say there should be a police station level added. The level would eventually end with an armored cop fight, similar to the gym battle. When the cop is beaten they drop an armor buff (but since the body armor was damaged in the fight, Syahata only gets elbow and knee pads) and also drops a pistol magazine increase. (level could also include a dog kennel portion or a part where they somehow get handcuffed)
Also saw a comment about a zoo. I would love to see that as well but the animals are mutated tentacle beasts, like a tentacle horse or gorilla. At some point I think it would be a good area to add a melee weapon upgrade, a electric stun spear.
Loved the hidden spider scene, I would love more of those if you could somehow add those, or maybe even side paths that could be used to get upgrade items like mentioned above.
Lastly I think the surrender emote should be different. Maybe it's just me but I feel like lust driven creatures wouldn't understand "hands up" but it should be Syahata lifting her skirt tempting them.
Overall amazing game and I look forward to it developing. (easily one of my favorites now) I would love to continue suggesting ideas if you'd want to hear. Keep up the good work