Lovely concept! I haven´t encountered many issues. The background music sometimes starts to crackle but I think that may be because of the online version. I also had a case were throwing indicated that there is danger, but my fairy landed safely and once the other way around were the danger indicator didn´t show but I tossed her off the level.

I don´t know what and how much of the art is placeholder but the images on the tutorial have charme and I love the animations on the toads, the eating animation in particular is perfect. The toad looks so proud chomping on my fairies. I hope you can retain that in the non-placeholder art.