I really like the progress so far, the movement feels intuitive and responsive, and I like the flow of movement that you get from being able to wall-kick while moving forward.
One of my biggest gripes is the controller set up though, as it generally asks you to play simon-says to map the buttons, but won't tell you what they do. I ended up having to press random buttons in-game to figure out what things did (before I found the prompts that explained their function, mind you).
This would be fine if it wasn't the fact that I wanted to customize my controls to be more recognizable to me, but some trial and error got me to the layout I wanted, and I had a BLAST with it.
I'm hopeful that future versions will have more secrets and stuff you can find that are akin to the buster power up you get by wall-jumping in the dungeon, as there were pipe placements in the dungeon you could only get to by careful wall-jump scaling, or getting into the building when you find the path past the ruined fences in the docks that left me feeling like, "Damn, this would be a GREAT place for a random chest!"
All in all though, I enjoyed my time with the game, and will definitely be keeping my eye on this. Alsothemaincharacterisadorable.