HOW TO PLAY

Every game on games.passed.jp is designed to be understood in under 10 seconds and played in under 2 minutes. But each one rewards a closer look. This guide covers controls, tips, and the design idea behind each title.

★ KATANA SLICE — N°01 chef's pick

Play it now: /games/katana/

What it is

Swipe a big katana across the screen to slice falling fruit. Audio + visual feedback designed for ASMR replayability. The game runs deterministically (same seed = same fruit, byte-identical) so a recorded play can be replayed exactly.

Controls

• Mouse / touch — swipe across the screen to cut. The faster the swipe, the harder the slice
• One swipe can cut multiple fruit if they line up
• Mobile: rotate phone to portrait, full-screen recommended

Scoring

• Perfect cut (swipe passes near fruit center) = bonus + crisp ASMR audio attack
• Good cut = standard score, lighter audio
• Edge cut = small score, dull audio (intentional — teaches you what "perfect" feels like)
• Combo = chaining cuts within ~1.2 seconds layers the audio and increases multiplier

Tips

• Don't flail. The blade rewards precision, not speed alone
• Watch for the surprise reveal — about 1 in 14 slices reveal something unexpected inside the fruit. Catch the secondary object before it escapes
• The watermelon at the end is a finale moment. Don't rush it

Audio recommendation: headphones.

SLIME CRUSH — N°02 chain blast

Play it now: /games/slime-crush/

What it is

Tap the glowing weak points (vital points / 経絡秘孔) of a 600-particle slime cluster. Each hit triggers a BFS chain explosion that propagates up to 12 hops away. Hit them all, or break a score threshold, to trigger the finish move (gravity inverts, the entire cluster blooms outward, and a 2.4-second collapse plays out).

Controls

• Tap / click on a glowing yellow spot to detonate
• Each detonation may trigger chain reactions in nearby weak points
• No keyboard controls — pure touch / mouse

Tier system

Particles are randomly assigned tiers:

• Gold (1.5%) — instant finish move when hit
• Rainbow (5.5%) — large chain bonus
• Siren (15%) — long chain, screen shake
• Loud (28%) — medium chain, audio boost
• Normal (50%) — standard chain

Tips

• Don't tap randomly. Chain reactions are positional — pick a weak point that has neighbors
• The pulsing yellow halos are not decoration — they show which spots are "primed" for chain
• Saving a gold spot for last triggers a satisfying double finish

BOARD ROTATION — N°03 brain spark

Play it now: /games/board-rotation/

What it is

A falling-block puzzle where the entire board can be rotated 90° at any time. Match 3 or more blocks of the same color to clear them. Cleared cells emit pixel-explosion particles.

Controls

• Keyboard: ◀ ▶ move, ▼ drop, ↑ rotate piece, Space rotate entire board
• Touch: 5 buttons at the bottom of the screen

Tips

• The board-rotation move is your secret weapon. Use it to convert a vertical column into a horizontal row of matching colors
• Watch your column heights before each spawn — pieces appear at the top center and game-over if blocked
• Larger groups score exponentially (group × 10 per cell)

★ FALLING MERGE — N°04 avant-garde

Play it now: /games/falling-merge/

What it is

An experimental piece — numbers as creatures, physics as choreography. Drop blocks, merge same-value pairs into higher values, evolve up a food chain. Powered by matter.js (real 2D physics, not faked).

Controls

• Tap / click on the play area to drop the current block at that column
• Two blocks spawn at a time — preview shows the next pair at the top
• Same-value blocks merge on collision (with a small impulse for visual flourish)

Gallery installation note

This game is intentionally less "winnable" than the others. Treat it as a desk toy — drop blocks, watch the physics, get small thrills when a long chain merge cascades. Score is secondary to the choreography.

Special blocks

• Gold "99" block (10% spawn rate) — high-value, harder to manage
• Fractional blocks — appear after strong collisions; 4 of them merge into a full block

GRID CLASH — N°05 arena

Play it now: /games/grid-clash/

What it is

Local-multiplayer flick arena. Two players, one keyboard, one ball. Kick the ball, time your parries, build up your momentum gauge for super-kicks.

Controls

• Player 1 (blue): WASD to move, Q to kick / charge / parry
• Player 2 (red): Arrow keys to move, M to kick / charge / parry

Mechanics

• Tap action key near the ball = standard kick in your facing direction
• Hold action key = charge super-kick (2× power); release when the gauge fills
• Tap action key when ball collides with you within 150 ms = parry (reflects ball, bonus momentum)
• Momentum gauge (green-to-yellow bar) builds up with successful actions; useful for in-game perks

Tips

• Parries beat charge-kicks. A well-timed Q/M can save you
• The center circle is good real estate. Control it and the ball comes to you
• If you're playing alone, you can practice ball control with a single side

ARROW SHOT — N°06 surreal

Play it now: /games/arrow-shot/

What it is

A small, surreal slicing experiment. Somewhere between a game and a fever dream. Loose an arrow, watch how the world reacts. Pure ASMR.

Controls

• Touch / click anywhere on the screen to interact
• Best on mobile (portrait) with headphones

Note

This game is intentionally minimal. There's no high score table, no level select. It's a 30-second experience meant to be repeated when you need a quick mental reset.

General tips for all games

• Headphones improve every game on this site. Audio is half the design
• Full-screen mode (F11 on desktop, "Add to Home Screen" on mobile) gives the best experience
• Game progress and scores are stored only in your browser. Clear browser data = lose scores
• The games are designed for short sessions. If you find yourself playing for 30 minutes straight, that's your signal that the design worked. Take a break first; the games will be here when you come back

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