Surprisingly impressive and deep! Was not expecting that level of mechanics from this simple one-button game, such as gravity switching, cannons, back-and-forth puzzles, but I thought it was a great implementation of it all, especially with the boss level. Only critical feedback I would have is to fix the readability of the HUD elements (bright colors on top of bright colors don't read well), add a little bounce to the animations for the character and enemies, and I feel like the hitbox for the characters, or perhaps the hurtbox for the spikes, are way too big and should be more lenient. Great and funny experience though!

very simple but well executed, that unicorn better not be diabetic!

The artstyle is cute, though it could use some squish & stretch to feel more lively. More importantly, its few inconsistencies pull you out of the experience (like the 3D floating cookie even though everything else is 2d). It's also hard to tell the shape of each hitbox from the art, especially of your own character. Regardless, I would make it smaller to give a bit more lenience (though only when measuring whether you hit a spike, for landing on platforms it's fine right now). Dying from hitting a single pixel of a spike feels unfair, whereas if your entire feet touches it it is understandable.

Regarding the level design, I like the first few levels the most. Why? Because they rely on platforming-skills instead of timing skills (though I do think you continue to add variety at the right pace). The most interesting ones are the cookie-gravity levels, though it's sometimes hard to tell how exactly it works (sometimes I turn only once I've hit the cookies, but other times already in the air).

Also, why only allow the mouse button? Why not any button?

cute game really could see this going places

It's a good game as far as platformers go. I enjoy the aesthetic, the concepts, the idea in general. I think I'd enjoy it more if I was using a mouse instead of a touchpad on my laptop, but one thing I know for sure despite that is I don't like the hitbox on things. It feels like I'm not hitting things when I die. I'll have a decent buffer between me and a spike I'm approaching, but I'll die anyways. If I land and my long tail touches a spike, I also die, even though the tail really wouldn't get hurt and makes the hitbox unexpectedly long behind the player