Beautiful art style. Loved the illustrated tutorial and handcrafted fonts! Music was great and it fit the playful tone of the game really well.
Gameplay idea is seriously very good but in practice most of the time it felt like I am randomly stumbling upon bugs before figuring out their movements. It's hard to keep track of all of them at once (but it's possible you're not even supposed to).
Maybe something like revealing the bugs far away from the player would be a good solution? This way you could learn their movesets by observation and only track invisible ones close to the player. Or maybe I should just get good ;)