Games like JumpJet Rex
Games like JumpJet Rex include SANABI, Celeste, Momodora: Reverie Under The Moonlight, Hollow Knight, and Blasphemous 2. We matched them by the tags players give JumpJet Rex on Steam (Side Scroller, 2D Platformer, Runner, Racing, and Difficult): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: 2D Platformer · 2D · Action-Adventure

Celeste
Shared: Difficult · 2D Platformer · Platformer

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Difficult

Hollow Knight
Shared: Platformer · Difficult · 2D

Blasphemous 2
Shared: Difficult · 2D Platformer · Side Scroller

Super Meat Boy
Shared: 2D Platformer · Difficult · Platformer

Rain World
Shared: Difficult · Platformer · 2D Platformer

Afterimage
Shared: 2D Platformer · Side Scroller · Difficult

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Platformer

Skul: The Hero Slayer
Shared: 2D · Side Scroller · Platformer

Spelunky 2
Shared: 2D Platformer · Platformer · Difficult

Touhou Luna Nights
Shared: Side Scroller · Difficult · Platformer

Geometry Dash
Shared: Difficult · 2D · Platformer

SUPER CHICKEN JUMPER
Shared: Difficult · 2D · Action-Adventure

Super Meat Boy Forever
Shared: Difficult · Runner · Platformer

Hollow Knight: Silksong
Shared: Difficult · Platformer · 2D

NINJA GAIDEN: Ragebound
Shared: 2D Platformer · Side Scroller · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Side Scroller · 2D

Katana ZERO
Shared: 2D Platformer · Platformer · Action

Dino Run DX
Shared: Runner · Side Scroller · Dinosaurs

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

Turbo Pug
Shared: Side Scroller · Difficult · Runner

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Webbed
Shared: 2D Platformer · Cute · Platformer