Yes...
...
...
it's not actually that hard...
...
...
right...?
Using Machine gun and dubble trouble att the same time makes weird(?) noises.
(I only remember it was weird and not exactly what as i haven't plays in a few hours and forgot to mention it earlier)
And fighting the second boss using items that makes you shot many projectiles made the game lag very much for me in the early phase 1 (and yes i am using a PC and not a laptop)
It's a good that you are forced to fight the boss after a (assuming) random amount of rooms to not be able to farm. But the amount of power notes(?) you get changes dramatically with luck, in other words chanses are somewhat high that you only get 1 2 or simply none, which caused me to have to restart 20% of the time i did a new run.
its not very serious but it ruins the experience a little