* Albino rats have considerably more health than Marsupial rats.
* Albino rats inflict the Bleeding debuff.
* Try using Darts on the Albino rat, as it can lower your Hero/ine's health a lot in the early depths, with its Bleeding debuff.
If a group of them are chasing your Hero/ine, go to the door and slay them, until the last one is dead.
* If there are some rats in one place, try leading them into a corridor, and slay them one by one.
* Do not waste any Darts on a rat. You’ll need them for the deeper depths of the dungeon.
* As always, Marsupial rats are only dangerous in numbers.