Cat Got Your Tongue

Character Used	soul: 3, black: 3 Blindfolded
Challenge Number	8
Starting Items	Guppy's Head Guppy's Tail
Available Rooms	: no          : yes
Goal
Unlocks	Rune of Algiz
Unlock Method	Become Guppy

Cat Got Your Tongue is challenge #8. Isaac starts this challenge with Guppy's Head, Guppy's Tail, and , as well as three Soul Hearts and three Black Hearts, at the expense of his usual three Red Heart containers. Isaac is also blindfolded. This challenge is unlocked by transforming into Guppy. The goal is to defeat Mom.

Difficulty

• As a result of the blindfolded status, tears cannot be used, and Isaac must rely heavily on the erratic movement of Guppy's Hair Ball to do damage.

Strategy

• Because Isaac starts with 3 Guppy items, he begins the challenge as Guppy, which grants flight (a good way of avoiding damage), and creates Blue Flies when dealing damage with Guppy's Hair Ball, familiars, or a co-op baby, which act as a secondary source of damage.
• Guppy's Hair Ball is very difficult to control. It would be wise to spend the first few attempts at the challenge by practicing with it before a real attempt at completing the challenge is made.
  • Items that increase movement speed can make Guppy's Hair Ball somewhat easier to use. The extra speed will allow for more precise control while also increasing the range indirectly at which the Hair Ball can safely be swung.
• Buying 9 Volt from a Shop can allow more Blue Flies to be spawned by Guppy's Head.
  • The Battery and Car Battery can also increase Guppy's Head's effectiveness.
• BFFS! is a noteworthy item due to its effects on Guppy's Hair Ball.
• Orbitals, such as Cube of Meat and Sacrificial Dagger, can be more effective than Guppy's Hair Ball at blocking and dealing damage.
• Hive Mind greatly increases the damage of Blue Flies.
• Red Candle or The Candle can be useful alternatives to Guppy's Head, depending on the situation.
• Bob's Brain, while dangerous, can serve as a reliable alternative to bombs.

Reward

• 

  Rune of Algiz - Complete Cat Got Your Tongue (challenge #8).

Trivia

• "Cat got your tongue" is an idiom for when people are speechless.

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