|Item||Description||Effects||Location and Cost|
|Punch Card||Use to make punching attacks stronger in one battle. Use outside of battle to look at the card.||Increase ATK when in battle. Three can be traded in for a free Nice Cream.|
|Annoying Dog||A little white dog. It's fast asleep...||Absorbs the legendary artifact when used or dropped. Also gives the protagonist Dog Residue.||
|Dog Residue||Varies (see page).||Fills the inventory with more Dog Residue, with a possibility of giving Dog Salad.||Legendary Artifact Room in Waterfall, Free.|
|Mystery Key||It is too bent to fit on your keychain.||Unlocks the front door of the house next to Napstablook's.||
|Silver Key||(not an inventory item)||Unlocks Sans's workshop.|
|Undyne's Letter||Letter written for Dr. Alphys.||Used to regain access to Dr. Alphys's lab.|
|Undyne's Letter EX||It has DON'T DROP IT written on it.||Used to regain access to Dr. Alphys's lab.||
|0||If you are reading this, I messed up somehow.||Dropping this item or viewing it in battle crashes the game||Unobtainable without glitches.|
- All textboxes just got even cooler - @Shayy_TV on Twitter, February 11, 2021.
All items (6)
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