Bank Achievement Guide

How to Acess the bank
In between floors where you can refill your flask and upgrade your weapons, there will be a chance for a chest to spawn in that floor. If you see it, open it and jump on in! If you pass it, another one may not spawn for the duration of your run.

Theres a random chance for a shop in the bank to have a mimic. When you purchase a item it will get swiped up by him and you will need to defeat him to get your item and achievement, good luck!

At the start of the bank, or at any shop, there will be a gold terminal. Here you can take out a loan. You want to max it out at 20k. At the end of the level there is a golden door where it wants you to pay your loan back to proceed. Break the door and finish the run by killing either queen or king.
You will receive a 100 kill curse, be ready