Kino game. Charming music, visuals, characters, animations, designs, etc. Combined with a relaxing pace and music, I'm sure fans of puzzle games will eat this up.
I'll try and review the game in order of how things were presented.
First off, the controls are weird. Z to interact, Arrows to move? I don't play puzzle games, well, ever, so I don't know what the standard control scheme is, but this felt weird. I instinctively tried to press Enter to confirm things or end the stage, etc. It took me a while to get used to the controls, and I never felt too comfortable with them.
Cute level transition drawings. Mechanics in play in a puzzle are explained and I didn't get confused as to what my goal was, or how to achieve it.
Switching characters also feels weird. It feels as if there is an extra step involved. While at some point in the game you have 3+ characters to pick, in the early game there's only two. I feel that when you only have 2, you shouldn't need to confirm selection when switching characters. I should be able to press X, and immediately switch characters. I guess the added pause time is nice when strategizing, but it feels like an extra layer of waiting for an otherwise simple mechanic. Maybe I just didn't get used to it enough? Either way, might be worth a look to see if this can be simplified a bit. Perhaps a hotkey system, with numbers above a character's head? So pressing X will enter the switch menu, and following it up with a hotkey (ex: 2) will switch to character labeled 2.
The introduction of new mechanics are done at a nice pace. I don't feel overwhelmed, but I can't say it's very hard yet. Haven't gotten stuck/lost yet. No clue what the difficulty curve of this game is, but perhaps it might be of interest to add a slightly more challenging level early on (and to sprinkle them every now and then), to retain player interest. Otherwise a player might never reach lategame because they feel like they aren't being challenged enough. Or maybe that's just me since I don't play puzzle games often.
I made it to Slumber Party (World 2, level 5ish?) before stopping. Probably due to the amount of switching characters I needed to do?
I haven't encountered any bugs or issues while playing. I again have to give special praise to animations, and how they are used. A character flying through the air not having any animations is actually ridiculously clever and adorable. I threw my blue faery off the stage accidentally, and watching her smug face fall without a single change in expression or posture made me laugh out loud.
Really excellent game. Well done.