Thanks for trying out my game. I really appreciate it :D
Where exactly do you mean should dragging be supported? You can drag and drop consumable items onto frogs and u can also click on an item and then on a frog. The only places you cannot is for rewards and the shop. Is this what you meant?
The tadpole thing is something i already got feedback on but didnt find a solution yet because I thought i would use them for the tutorial but it would be cool indeed to make a mechanic out of them and evolve them into stronger frogs. I need to think about it again.