Documented for this version

Which controls does this version use?

Actions

Silkworm action controls
Joystick
Move the helicopter or jeep

The vehicle uses eight-way directional movement where supported by the arcade controls.

Fire button
Fire the weapon

The selected vehicle's weapon attacks enemies in front of it.

Bomb button
Use the bomb weapon

Bomb ammunition is limited and should be reserved for dangerous situations.

Control notes

  • One player controls the helicopter; in two-player mode, the second player controls the jeep.

  • Arcade cabinet button labels and layouts may vary by machine.

How it plays

How does Silkworm play?

The screen scrolls horizontally from left to right. The helicopter can move freely around the play area, while the jeep remains on the ground and must navigate terrain and obstacles. Players fire continuously at enemies, avoid projectiles, and collect or use power-ups when available.

The objective is to clear successive stages and defeat their bosses. A second player can join as the jeep, creating complementary roles: the helicopter handles aerial threats while the jeep attacks ground targets. Limited lives and arcade scoring provide the main progression and replay incentive.

Plan your run

What is the best way to play Silkworm?

Stay mobile and avoid fixed attack patterns; enemies can approach from several directions while the screen advances.

In two-player games, coordinate the helicopter and jeep so that one player covers threats the other cannot reach. Learn boss attack timings rather than relying only on rapid fire.

Use the jeep's ground position carefully around obstacles, and save lives by prioritizing incoming projectiles over less dangerous targets.

Meet the cast

Who are the key characters?

1

Silk Worm

The helicopter vehicle, built for high mobility and flexible attacks against air and ground threats.

2

Super Bug

The jeep vehicle, stronger in direct ground advances and handling terrain-heavy routes differently.

Before you begin

What should you know before playing?

  1. 1

    The helicopter has greater freedom of movement, but the jeep's ground position can make some targets easier to attack.

  2. 2

    Two-player cooperation is the main strategic feature; divide attention between aerial and ground enemies.

  3. 3

    Memorize stage hazards and boss patterns to improve repeated arcade runs.

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