Mint Jump

An endless vertical climber in the spirit of Doodle Jump, built by Sullen Studio. Bounce from platform to platform, climb as high as you can, and don't fall — or get eaten by what lurks at altitude.

Built with Vite + Kaplay 3001. All graphics are drawn shapes — zero external assets.

Play

• Live: https://sullenstudio.github.io/doodle-jump/

Controls

Input	Action
← / → or A / D	steer the jumper
hold left / right half of the screen	steer (touch)
left mouse button or Space	shoot downward
[FIRE] button	shoot downward (touch)
Space / tap	start, retry

The jumper bounces automatically when it lands on a platform and wraps around the left/right screen edges.

Platform types

• Mint — normal, static platform
• Light mint with dots — moving platform, slides horizontally
• Wood — breakable, falls away after one bounce
• Mint with an orange spring — spring platform, huge boost

Higher up, platforms get sparser and moving/breakable ones get more common. Past ~2200px of altitude, black holes start appearing — they pull you in, and touching one ends the run instantly.

Weapons

You shoot downward, and the recoil lifts you. Every weapon obeys impulse / cooldown < GRAVITY, so holding fire slows your fall by about half but can never produce sustained flight — you still need platforms.

• SIDEARM — infinite ammo, one pellet, a gentle kick
• SCATTERGUN — 24 rounds, five pellets in a cone, a real boost

Run out of ammo and you drop back to the SIDEARM automatically.

Demons

GRUNTS climb toward you from below the screen, getting faster and more frequent with altitude. Shooting downward kills them and pushes you up at the same time — one action solves both problems. Touching one costs 25 health and knocks you sideways; you get a moment of invulnerability afterwards.

Ammo crates and medkits sit on platforms, and grunts drop ammo when they die. Accurate shooting pays for itself; spraying does not.

Score is height climbed in meters. Your best height is saved in localStorage.

Run locally

npm install
npm run dev

Build

npm run build   # outputs to dist/
npm run preview # serve the production build locally

Deploy

Pushes to main build and deploy to GitHub Pages automatically via .github/workflows/pages.yml.

License

MIT — see LICENSE.