At first, I was like "Hmmm, something seems familiar here", then I looked at the name of the game and realised it :D I love the Madness Combat series and Nuclear Throne is one of my favourite games. I can't wait for the full game to come out, IF it delivers what it promises. So far it looks great.
There are few suggestions that I'd like to say:
1) Fast paced gameplay (like real Madness Combat) -> lower enemy HP, but raise their speed, bullet speed and lower firing delay.
2) Ammo - same way like in Nuclear Throne -> If you are at full HP = ammo drop, if not than you can get a HP drop instead.
3) Different characters -> I would love to beat some sort of secret boss and then unlock Auditor as a playable character :)
4) Perks, upgrades, abilities, etc.