Played the forest level. All in all I did enjoy it the same way I enjoy Super C, but I do have a list of nitpicks:
-Feels a lot more chaotic than Super C. Probably because you have about 8 different elements at play all kinda thrown together.
-The stage is also very drawn out. I think had the stage been more thematically split up you could have also split up the enemies/hazards, making the stage feel more fresh throughout and also not feeling as cluttered.
-Some elements are hard to see. Like the guys who shoot blood among all the other blood that's on screen.
-The boss laser felt more like a trick. Up until that point I'd always been forced to be active and so never used the duck. Suddenly being forced to use it screwed me up.
-Weapons never stood out to me. They all seem incredibly similar, bar the one which shoots out in all directions which just feels out of place. This certainly seems more Super C inspired to me; it might be worth looking at Contra 3 Alien Wars for weapon inspiration. I always found that game does weapon strat best.
-The respawn time feels a little bit too long.
-Something about the game still feels flat, perhaps a lack of sound effects for movement? That's a stab in the dark though.
-Lastly, when I pressed shift in the config, it wouldn't recognize it.
All I can think of for now. If you're looking for anymore feedback hit me up.