Some fabulous graphics on show here!
That was a massive lore dump in the intro and I found it hard to follow.
Great use of game juice!
I felt like you were introducing the first few enemy types too fast. Give me some time to get used to one before throwing the next one into the pot.
That chicken bomb is everything I ever wanted. However, the boss was too easy. I just walk up and spam attack, then I'm basically guaranteed to win. I'm also not sold on self-damage for the chickens.
A lot of the jumps felt like they were right at the edge of my maximum jump height and range, which didn't feel very good.
I appreciated your level design and room variety keeping me using my different abilities and the different challenges, keeps things from getting boring.
I missed the checkpoint before going into the boss room, lost all my progress since the beginning of the game, then didn't want to redo it all so I quit, Pro tip: force the checkpoint by placing the room immediately before the boss, not as an optional room to the left of the boss.
I'd prefer more checkpoints in general, but I'm also the type of player who is averse to super difficult games. If it's working for your target audience, then fantastic.
You either must've crunched like crazy, or Construct3 is super fast, or both. Either way, this is quite polished and one of my favorites.