Side projectBrowser game, fan-madeNon-commercial2026

LUNU ANGRY

A slingshot game I designed and drew for LUNAR fans, built with Claude. Fling LUNU the panda at the piggies' forts. A non-commercial fan project.

My role: Game design, character art, UI
Built with: Claude, Figma, matter-js, Vercel
Launched: Oct 26, 2026
Levels: 30, plus 2 secret

259Kviews on my launch post on X

4,122players on the leaderboard (Oct 30)

47countries and territories

Play LUNU ANGRY (opens in a new tab)

01 · Launch

One post, one clip, one link

On Oct 26, 2026 I posted the game on X as a gift for fans, for LUNAR's first single.

259Kviews

6.4Klikes

5.3Kreposts

Launch post counts on Oct 30, 2026, plus 1.2K bookmarks and 21 replies.

02 · Growth

From 2 stages to 5 in two days

When the music video passed 500K views on Oct 28, I shipped three new stages and two secret levels. 11 levels became 30.

Forest map: a dirt path through pine trees with level stones 1 to 5 — **Forest** Lv 1–5

Glamorous Stage map: a red carpet between theatre curtains, levels 6 to 11 — **Glamorous Stage** Lv 6–11

GLAM HOUSE map: a tiled café path with flowers, levels 12 to 15 shown — **GLAM HOUSE** Lv 12–18

Halloween House map: a purple night with pumpkins, a ghost and the gate to 500K IS HERE — **Halloween House** Lv 19–21

500K IS HERE map: a red carpet on a dark gold stage with disco balls, levels 22 to 26 shown — **500K IS HERE** Lv 22–30

Halloween House level: LUNU on the slingshot shouting LUNARRR in front of a brick wall with a ghost

500K IS HERE level: LUNU aims at a fort on a gold stage under a big LUNAR sign

03 · Design choices

Made to pick up on a phone

Level 3 opens on the fort: Rock Shelf, knock out 6 piggies — **See the level first.** Each level opens on the fort, then pans back to the slingshot.

Then the camera pans back to LUNU on the slingshot, with the hint Drag anywhere to pull back — **See the level first.** Each level opens on the fort, then pans back to the slingshot.

The level map on a phone — **Two screens only.** A map and the game. Everyone knows how a slingshot works, so there's no tutorial.

The game scene: LUNU hits the fort and points pop up — **Two screens only.** A map and the game. Everyone knows how a slingshot works, so there's no tutorial.

LUNU in flight shouting is here! on the Glamorous Stage — **One gesture.** Drag anywhere to aim. The camera can't be dragged, so it never fights the slingshot on a touch screen.

04 · Learning from the leaderboard

Same score, so I added more to hit

First launch

The leaderboard filled up with the exact same score.

Second launch

Optional bonus pieces, like roll cakes, worth extra points.

GLAM HOUSE level: brick and wood forts in a café, with colourful roll cakes on the floor as bonus pieces

05 · Players

Three days of data

2,619visitors

3,462page views

1K+visitors a day, Oct 28 and 29

Visitors by country, top 10

Thailand1.5K
Vietnam157
Hong Kong151
Taiwan131
Indonesia120
Singapore103
Philippines93
United States92
Malaysia70
Japan62
37 more186

Vercel Web Analytics, Oct 28–30, 2026, switched on after the second launch. Thailand is rounded, as Vercel shows it (56%).

06 · Fans

What fans said

Fans quoted my post on their own. Three of those posts reached 50.4K views between them. Names are hidden.

this is such a cute and clever way to promote our baby panduck's first single and mv omg
Fan on X, with screenshots of their run · 3.3K views, 142 likes
Everyone, I'm hooked on angry lunar. There are new levels for Halloween, and a secret level. When you pull back to shoot, it shouts "rachaaaaaaa". The game design and the icons are so cute. Everyone go play!
Fan on X, translated from Thai · 7.1K views, 160 likes
Could you make endless levels, like Candy Crush?
Fan on X, translated from Thai · 40K views, 296 likes

07 · Process

How I worked with Claude

I design, Claude codes
I drew every character and scene draft. Claude turned them into the game.
Rules first
I test on my own machine before anything ships, and I push to production myself.
Playtest every slice
Each slice had to pass one bar: a level clearable in 4 shots. GLAM HOUSE (Lv 12–18) missed it, so from there LUNU hits harder, levels 12–21 have 5 to 8 piggies instead of 9 to 15, and cakes became optional bonus points. Forest and Glamorous stayed as they were, and the score cap never dropped, so earlier scores still count.
Scores are never lost
A physics check on every fort, a backup of the board before every push, and a CI check that blocks deleting scores.

08 · What I learned

LUNU ANGRY taught me when to decide as a player, and when to decide as the product owner and designer.

And how an MVP works: something small, made with care, earns trust, and trust lets it grow. Next: characters you can pick, each with a power, like tap to explode or tap to split.

Next side projectVisual design: hand-drawn tiles that spring when you touch them.