thanks so much for giving a long feedback! Also i have good news for you: UI (itch page included), bugs detail and fun facts is on the development!
Planned "Items" is actually a booster pack (another gacha) but you will get item instead of bug in which, one of them is running two rolls at once! How fun.
Bug combos is on the plan as well. So let's say you put black, green and brown common bug, that will have an effect such as double the income. And also another combos will have certain effects as well.
I'll put the other suggestion on the bucket as well! Again, thanks for the suggestions and feedback! <3