Knife Hit

Description

A wooden disc rotates in the upper portion of the screen. Tap to launch a knife from the bottom — it flies straight up and embeds in the target if it lands at least 20 px from any knife already stuck there. Get close enough and it is game over.

Each level requires more successful throws. Pre-placed knives already occupy the disc at the start, forcing you to aim between them. The disc rotates faster every two levels and adds a rhythmic oscillation on top of the base speed — the target speeds up and slows down in a wave pattern, turning timing into a core skill.

Features

• –Infinite levels — difficulty scales with level count, no cap
• –Sin-wave rotation — base speed plus oscillation makes timing a skill, not memorisation
• –Pre-placed knives — up to four obstacles already on the target at level start
• –Visual target — concentric wood-grain rings with grain spokes, not a flat circle
• –Instant feedback — knife embeds with a satisfying snap or game over triggers immediately
• –Level toast — "LEVEL N" floating text on each transition

How to Play

1. 1.Watch the disc rotate and feel the oscillation rhythm
2. 2.Tap when there is a clear gap between existing knives
3. 3.The knife flies up and sticks if it clears the 20 px separation check
4. 4.Stick enough knives to complete the level — the count goes up each level
5. 5.Hit an existing knife = game over; start from level 1

Rotation Formula

The target speed is not constant. It follows:

`speed = (baseSpeed + sin(t × oscFreq × 2π) × oscAmp) × direction`

Direction reverses every two levels. This creates a rhythm: the disc slows momentarily, offering a window — learn to read it.

Difficulty Scaling

| Level | Knives to stick | Pre-placed | Base rotation |

|-------|----------------|------------|---------------|

| 1 | 6 | 0 | 0.85 rad/s |

| 5 | 10 | 4 | 2.05 rad/s |

| 10 | 15 | 4 | 3.55 rad/s |