Enigma's Challenge List.

Counting an Ultimate as one challenge: 28
Counting each challenge done for an Ultimate: 57 (currently not including the 151 solos)

All solos of 151 original Pokemon in RBY.

The Ultimate Monocolor Challenge (Purple)

(FireRed)

(Crystal)

(Sapphire)

The Beginning Letter Challenge

(Ruby)

The Username Letter Challenge (Using letters I,N,F,E,R,N from previous username)

(Yellow)

(Crystal)

The Ones That Got Away Challenge

(Yellow)

The Second City Challenge

(Red)

The Special Pairs Challenge

(Red)

The 12 Type Challenge

(Emerald)

The Gym Leader Challenge (Gym Leader:

)

(Crystal)

The Personality Challenge (Traits: Clever, Dutiful, Fierce, Formal, Frank and Logical)

(Ruby)

The Favorite Challenge

(SoulSilver)

Save the Pokemon! Challenge

(Ruby)

(Sapphire)

(Emerald)

The Favorite Challenge V2

(White)

The First Route Challenge

(Crystal)

Challoween!

(Yellow)

Syddy Claus' Challenge

(Silver)

Trainer Personality Examination

(Sapphire)

The No Catch Challenge

(Red)

The Pokemon TCG Challenge

(Ruby) {Team Magma Deck}

(Emerald) {FireFang Deck}

The One-in-Each Challenge

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(FireRed) / (Crystal) / (Emerald) / (Platinum) / (White)

The Low Stat Challenge

(Ruby)

The Random Pokemon Challenge

(White)

The Date of Birth Challenge

(Emerald)

The Ultimate Solo Challenge

(Yellow) (Crystal) (Ruby) (Platinum) (White)

The Ultimate Duospecies Challenge

(Red) (Crystal) (Ruby) (Pearl)

The Ultimate St. Patrick's Day Challenge

(LeafGreen)

(Gold)

(Emerald)

(HeartGold)

(White)

The Ultimate Character Challenge (Character: Kakashi Hatake from Naruto)

(LeafGreen) (SoulSilver) (Sapphire) (Platinum) (White)

The Ultimate Monocolor Challenge (Green)

(LeafGreen)

(Gold)

(Emerald)

(Platinum)

(White)