Too much backtracking, combat is very basic, demands you grind to buy upgrades, doesn't explain wtf you're supposed to be doing, music gets annoying very quickly. Maybe a few more benches would have helped? I went online and discovered there's a fast travel system that the game prefered to keep secret. Oh, and there's a bank. A fucking bank.
It's a very good platformer, with cute bug-knight, lovely singing miner and catterpillars. But there are some minor issues, that force me to put 4 ('cause no 3,5 option) and irritate during play.
The first and the most - tech issues. FPS drops on currency pick-ups, on hit etc. It's kinda weird to get a huge fps drop when you pick up more than 20+ coins (not to mention that coins tend to fly through your character and drop to places you'll never get them).
The second issue is the most irritating - trashy foreground. I've never seen any platformer before, that makes monster almost invisible in all this decorative (and unnecessary) mess. The smaller the monster, the harder it is to spot it.
The third issue - gameplay tend to become more tight and boring as soon as you get the "rules" of the world - I'm in something like 8+ hours in the game and I'm already tired of killing the same monsters and chosing the only aviable paths - 'cause there are roots you just cannot take. You just don't have the necessary skill, so yes - backtracking. And bosses. Well, the look cute, but are boring and plane.
But, the game is still pretty fun. I can reccomend it, if you're tired of Shovel Knight and Rogue Legacy. It's quite a game with a special petty soul in it, which will tempt you to see, what that bugs are all about.