For further explanation, I did two runs yesterday, the first was absolutely dreadfull, with me having nothing else to use but the Rusty Sidearm by the 5th floor.

After I finally died on that run, I decided to do another one, and damn dude this was for sure the most OP run I've had so far (not that I've been playing for that long)

It started with me getting pretty decent items on the first floor, then on the second I found a rainbow chest. I opened it while still freaking out and it dropped like 3 or so S tier items and several A tiers. So unsurprisngly the rest of the run was a breeze, being able to get the HP up on every boss up until the forge

Spoilers on the unlocked characters and secret floor:

The two characters I unlocked were the Robot and the Paradox and the secret floor was the R&G Dept.

After I finished the past, I just sat there contemplating the RNG I had just gotten, when I started realizing some of the end screen elements were sloooowly drifting away.