Resourceful Rat

Down Special (Resourceful Sack):

The Rat pulls out his sack and begins rummaging through it somewhat frantically, eventually pulling out an item and stowing both it and the sack back into his cape. This entire animation takes about two-thirds of a second to complete, and getting hit during any part of it will prevent the Rat from getting the item. If the move is completed successfully, the item you got will be used the next time you use down special (for ease of reference, an icon of it appears next to the Rat's damage percentage until you use it). Most items are one-and-done deals, but a select few get multiple uses.

There are fifteen possible items you can get from this move, three for each level of quality from Enter the Gungeon (D, C, B, A, S). The item you get is not entirely random: they ascend in order of quality, so for your first pull on a fresh stock, you'll always get a D quality item, then a C quality one on the next pull, then B quality, and so on. After pulling an S-tier item, the cycle starts again at D. You cannot pull an item more than once on the same stock. So, for example, if you got a Ice Bomb for your first item of a stock, your next D-tier pull will never be Ice Bomb again, only one of the other two possible items for that tier. If there are no more items available in a tier, you'll get one from the next. If you somehow manage to use up all fifteen items in one stock, further uses of this move will only produce Junk, which the Rat is visibly disgruntled about getting.

D-tier: Ice Bomb, Decoy, Shoothook
C-tier: Jetpack, Jar of Bees, Napalm Strike
B-tier: Teleporter Prototype, Portable Turret, Fortune's Favor
A-tier: ???, Elder Blank, Potion of Gun Friendship
S-tier: Bracket Key, Relodestone, Double Vision

Passives: ???, ???, ???
Bullet Modifiers: Irradiated Lead, ???, ???
Actives: Big Boy, ???, ???
Guns: ???, ???, ???

Neutral Special (Elimentaler)

Side Special (Rat Roll)

Up Special (Escape Artist)