This is a great game so far! I missed it out the first time you entered it in an MVM and I think in the process I missed out. Bullet point review below, from overarching down to smaller details
- Mechanics are solid overall
- Controls are pretty good overall (at least for controller, though I tried a small amount with keyboard/mouse)
- The main menu can be used by controller but it's not obvious. I recommend having more buttons act as confirmation buttons when in doubt
- There should probably be an attack button on the keyboard that works nicely with either WASD or the arrow keys--but if there is, I don't know what it would be from the documentation. The controller layout is pretty intuitive though, IMO, at least re XB360
- World design is great overall
- The nonlinearity is very well-handled in the version I played for MVM 20 Super--I got the impression the number of possible legitimate routes through the game was actually at least a route or two more than the route I've taken thus far, and that's not necessarily even accounting for the east/west choice.
- I am missing one of twelve key pieces--if there's some way to get a hint about this ingame, so that I might at least get a notion on which room I've yet to scour sufficiently, I don't know what it is
- I would suggest asking critically for each one-way transition whether it really needs to be one-way. Unless you're gating so that the player will use a power to get back, it feels like they more or less just get punished for taking a "wrong turn at Albuquerque."
- Enemies and bosses are well-designed and I enjoyed fighting them, mostly
- Bosses could be slightly more telegraphed, the prince/princess ones in particular
- Please give players a damage upgrade option at some point or decrease the amount of hits each enemy takes by 1. Too many things take too many hits to kill.
- Audio-visual presentation is fairly on point
- It might be a tiny bit too cute for what's happening, but aside from that dissonance, and a weird lack of music during some of the boss and brawl sections, I don't really see much issue
- In overall options please give a windowed option and maybe an option to turn down the visual effects a bit. I would have given you some video reacts to look at, but my computer may in fact not have been sufficiently powerful to get those without a lot of frame-skipping.
Overall a solid 4/5 all around for me except the genre which is an easy 5/5. I've played about 1-2 hours at this point and would readily volunteer to beta test when the game gets to that point. As you probably know as a dev, any potential problems I'm pointing to here are mostly minor pain points as a user and not necessarily a pointer to an exact solution. Best of luck continuing this one. Consider it wishlisted per your request. :)