What items are underrated in your opinion?

[Ninbi]

Title says it all.
Some of mine:

• Rage greatly increases damage output
  
• One room charge items like the Bean and Tammy's Head are super useful
  
• Chocolate milk lets you increase fire rate past maximum.
  
• IPECAC melts bosses and gives you infinite bombs, and hitting yourself is the player's fault.
  
• Abel almost always does a lot more work than people give the little guy credit for.
  
• Bob's Rotten Head's poison damage can melt bosses all by itself up to the Depths and Womb.

[Sexy Iron Maiden]

Chocolate milk is the only item that I wont pick up, but yeah I like bean and tammy's head

[Lem]

The Virus, especially if you're playing as ??? / rolling on soul hearts and have the Polaroid or Book of Shadows.

[Ninbi]

Originally posted by Lemmy ⊙◡⊙:

The Virus, especially if you're playing as ??? / rolling on soul hearts and have the Polaroid or Book of Shadows.

Even without it I find the item incredibly useful, a lot of the time you can get trapped in a corner, getting hit over and over. The virus greatly limits/prevents that.

[Bacon Based God]

Speed ups
Any run where you get three or more speed downs will leave you praying for speed ups

[UglyTuc]

Xray Vision. Saves bombs and always leads to money for shop/arcade/slots or items.

[Sexy Iron Maiden]

Originally posted by UglyTuc:

Xray Vision. Saves bombs and always leads to money for shop/arcade/slots or items.

That is one of the best items, not underrated at all :)

[Gea Force]

Bad trip pill
It turns into a full health pill if your health is 1 heart or less. Pretty useful when you're really desperate

[Sexy Iron Maiden]

Originally posted by Gea Force:

Bad trip pill
It turns into a full health pill if your health is 1 heart or less. Pretty useful when you're really desperate

Yeah I always forget about that

[marthoo]

black bean is sumtimes

[Inflatable Toast]

Guppys head, while most people say it is op, i find it's op becuase you can have just an army of flys sometimes. I also love the bum friend, as it means i can get items just by leting him be a portible judgement.