My Take on Pizzahog - it's Great! a interesting mechanic and consistent tone
Good Atmoshpere - everythign fits together to create a fun tone, i especially like the cozy cheerful homes in hell.
I love the take on "Only one Projectile", making trick shots is satisfying
Advice and my Experience
for the first button in the game, because it was placed some distance away from the door, it was not immediately obvious that it would stay pressed, I assumed it would unpress and died for it, you might consider just putting the button closer to the door.
I exited and changed the controls so that W was jump after reaching the first checkpoint, things happen so fast in the game that the extra effort needed to press space instead of W to jump was detrimental to me, i personally had an easier time after i did this.
I ended up throwing the box at the green guy to discover the entrance the hidden room 1, not a criticism, just a note
that is awesome that the box comes back a little when you are close to it, really helps lower that difficulty curve without the player even noticing the help, i didn't see it until I was near the boss.
I beat it! missed 6 coins somehow. found 2 secret rooms. I presume the :( means you aren't mad, just disappointed
If I were making this, I would focus on interesting level design that involves trick shots more than swarms of enemies, and spikes. If you do want more enemies, then try slowing the game down, a little, it will make the combination of one hit KO, spikes everywhere, and enemies to avoid easier to manage in the beginning.
Bugs
there is a pixel wide gap you can see through at the bottom of the panels that cover the hidden entrances and exits
i managed to get stuck in a wall, could be a fluke, could not repeat it
sometimes when i fall on spikes, two sets of NOOOOO! will appear (indicating that my pizza is screaming i guess? ;) )
it's possible to leave the fire hazard at the last possible moment, your pizzas will catch on fire but the game will keep going without resetting
you can get two failure sounds if you die and then your pizzas or vice versa.
The list of controls when configuring the game contains duplicate entries for certain commands, not sure why.
I could not figure out how to get a controller working right, I couldn't seem to map anything but the mouse to aiming, and i couldn't trigger the fire action with the controller either.