What a great little game. I "beat it", but there's so much optional content and other hints that I'm gonna assume there's more to this game (don't tell me if there is or isn't).
Highest praise to the powerups. Some of the best the genre has seen in a long time. You're constantly finding new uses and new tricks with them throughout the game, and the different room layouts and warioland/toki tori style enemies make it so there's always an extra layer to learn or play around with. Especially the
Figuring out how to use that reminded me of learning how to wall jump in super Metroid. Lots of room breaking potential, but the game won't just tell you that and it'll require some dexterity to pull it off.
I probably won't go for 100% completion as I rarely do that, but it's an easy 10/10 game. You just start playing and never stop.