Some mystery man who slipped on a banana peel and died and is the father of two overrated skeleton dudes
Powers and Stats
Tier: Hyperverse Level (basically has 66666 attack which is basically above all undertale characters... May or may not include asriel) I Tier 0 I Likely immensly higher
Name: W.D. Gaster
Origin: Undertale. Actually gaster absorbed the concept of origins
Classification: Mystery Man, Missingno's Long Lost Cousin
Powers and Abilities: Omnipotence, Reality Warping, Gaster Blasters and crap
Lifting Strength: At least Ice Cube Level++
Striking Strength: ...
Durability: Small Hyperverse Level I True Infinity (Nothing, Not even hax can attack him. He doesn't exist damn it)
Stamina: Undertale doesn't have stamina. It's a damn rpg, What is this SSB?
Range: He's good at making touhou bullet patterns
Standard Equipment: His hands which he eats and drinks if he's hungry
Intelligence: Just as smart as albert einstein I Omniscient
Weaknesses: Gaster absorbed the concept of weaknesses. Except for banana peels which can trip him if he's not careful. Despite it being his only weakness, Gaster would find it irrevelant and destroy said banana peel if he wants to.
Key: Average Gaster I Deprived Gaster I Gaster 2.0.
Feats: After falling to the core, Gaster can be seen anywhere in reality, fiction, non-fiction, non-everything and more, According to some youtube commenter you must destroy reality to fight him
Notable Attacks/Techniques: Magical Hands, Limitless Absorbing, Levitation
Theme Song: Don't worry he has a hella cool one
The Undertale Verse. All of it
Some other verses he soloed, Not even demonbane stands a chance against gaster
"Notable Losses" (Gaster can just reflect his opponent's attacks by shapeshifting into said opponent to make the opponent's attacks attack said opponent instead. Even infinity and beyond attacks apply dear god my brain hurts from making and reading this page)
Missingno (Gaster realized he was his cousin)