Games like Neon Fusion
Games like Neon Fusion include SANABI, The Messenger, Skul: The Hero Slayer, Castlevania Advance Collection, and Katana ZERO. We matched them by the tags players give Neon Fusion on Steam (Action, Action-Adventure, 2D Platformer, Metroidvania, and 2D): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Pixel Graphics · 2D Platformer

The Messenger
Shared: Metroidvania · Retro · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · 2D

Castlevania Advance Collection
Shared: Action · Metroidvania · 2D Platformer

Katana ZERO
Shared: Action · Pixel Graphics · 2D Platformer

Gensokyo Night Festival
Shared: Action · Metroidvania · Pixel Graphics

Gravity Circuit
Shared: Action · 2D · Pixel Graphics

BlazBlue Entropy Effect
Shared: Action · Action-Adventure · 2D

Castlevania Dominus Collection
Shared: Action · Metroidvania · 2D Platformer

Blasphemous
Shared: Metroidvania · Pixel Graphics · 2D

Souldiers
Shared: Action · Metroidvania · Action-Adventure

Gato Roboto
Shared: Action · Metroidvania · Pixel Graphics

Castlevania: Belmont's Curse
Shared: Action · Metroidvania · 2D Platformer

Moonscars
Shared: Action · Metroidvania · Action-Adventure

Door Kickers: Action Squad
Shared: 2D Platformer · Action · Pixel Graphics

Pizza Tower
Shared: 2D Platformer · Action · Pixel Graphics

CARRION
Shared: Action · Metroidvania · Pixel Graphics

Bloodstained: Curse of the Moon
Shared: Action · Pixel Graphics · 2D

Axiom Verge
Shared: Metroidvania · Action · Pixel Graphics

Pipistrello and the Cursed Yoyo
Shared: Action-Adventure · Pixel Graphics · 2D Platformer

Super Meat Boy
Shared: 2D Platformer · Pixel Graphics · 2D

F.I.S.T.: Forged In Shadow Torch
Shared: Action · Metroidvania · 2D Platformer

Momodora: Moonlit Farewell
Shared: Metroidvania · Action-Adventure · Pixel Graphics

VVVVVV
Shared: Pixel Graphics · 2D Platformer · 2D