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[edit] Controls
- Joystick: Use the joystick to control the movement of Jack. Press left or right to make Jack run in either direction, or to fall through the air in either direction. Hold down to make Jack fall back down to the bottom of the screen faster, or hold up to enable Jack to jump higher than usual, to the top of the screen.
- Jump: Press the jump button to make Jack jump. The longer the button is held down, the higher he will jump. Jack will jump even higher if you hold the joystick up while jumping. Once airborne, tap the jump button once to make Jack stop rising in air. Tap the jump button repeatedly to make him descend slowly to the ground.
- 1-2 Players: Press either button to begin a one or two player game.
[edit] Player
You control Jack throughout the game. Jack's one and only mission is to collect all of the bombs in the stage before moving on to the next and collecting more. In his way will be several enemies which will seek to stop him. Jack will lose one life any time he comes into contact with any of the enemies. There is no time limit, so Jack can take as long as he needs to clear the stage. However, the longer you wait, the more likely it is that the enemies will overwhelm him. Jack can turn the tables on his enemies by collecting a power coin, which will temporarily turn all of the enemies into coins which he can collect. Whether Jack earns extra lives by reaching certain point values is operator controlled in the arcades, and is usually turned off.


Bombs are the focus of Jacks objective. In order to clear each stage, he must simply collect all 24 bombs that are scattered around the screen. However, once Jack touches the first bomb, the wick of one of the other 23 bombs around the stage will light up. Whenever a lit bomb is collected, another bomb lights up. From this point on, Jack can collect more points by focusing his efforts on the lit bombs. And Jack can earn a substantial stage completion bonus if he collects 20 or more lit bombs within a single stage. Unlit bombs are worth 100 points, and lit bombs, which stay lit indefinitely and never explode, are worth 200 points. At the end of the stage, if Jack collects 20 lit bombs, he will earn a 10,000 point bonus. If he collects 21 lit bombs, the bonus is 20,000 points. 22 lit bombs earns him a 30,000 point bonus, and if Jack manages to collect all 23 lit bombs, he will earn a whopping 50,000 point bonus.
[edit] Enemies
Birds (or Badoras in Japan) are found in every stage. For the first ten rounds, only one will appear. After Round 10, two will be present on the stage. They can only fly vertically or horizontally, but they constantly seek to close the distance between them and Jack's current position. Keep moving if you want to avoid them; they will find you eventually if you stand still for too long. Their speed will increase throughout the game.
[edit] Mummies
Mummies (or Nonons in Japan) appear in a flash of light from two high positions in each stage, one on the left, and one of the right. They will appear on whatever half of the screen Jack is not currently in. Early on, they will walk back and forth on platforms before falling over the edge. When they fall to the ground, they transform into one of the enemies below. In later stages, they do no hesitate to walk off the edge.
Sphere (Ball A)
| UFO
| Orb (Ball B)
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| Spheres seem to bounce a little bit around the stage. They will always try to occupy the same vertical column of space as Jack, although they still float up and down uncontrollably.
| UFOs will only change velocity when they hit something. They will travel extremely fast if they are far from Jack, and very slow when they are close.
| Orbs slowly float around the stage and home in on Jack. They will always try to occupy the same horizontal row of space as Jack, although they still float left and right uncontrollably.
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Horn
| Club
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| Horns bob around the stage with no set intelligence. Although they are easy to predict, they can take you by surprise if you don't pay attention to them.
| Clubs are possibly the most dangerous enemy. They home in on Jack just like Spheres and Orbs do, and can control their motion in any direction.
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| Item | Description
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| Power Coin: A meter surrounds the bonus multiplier at the top of the screen. The meter has 20 segments; unlit bombs fill out one at a time while lit bombs fill out two at a time. When the meter is full, the power coin appears and begins to bounce around the stage. If Jack collects the coin, the enemies will turn in to coins temporarily. The color of the power coin changes whenever Jack jumps or touches a wall or ceiling. The color determines how many points the coin is worth when Jack collects it: BLUE = 100pts., RED = 200pts., PINK = 300pts., GREEN = 500pts., AQUA = 800pts., YELLOW = 1200pts., GRAY = 2000pts.
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| Coins: Enemies will temporarily turn into coins whenever Jack collects the Power Coin. During this time, they remain frozen in place, and Jack can attempt to touch them in order to collect them. Collect them removes the enemy from play when it's time for the coins to return to normal. The coins will blink before they return to enemies. Each coin is worth an increasing number of points, starting with 100, and rising through 200, 300, 500, 800, 1200, and finally 2000. The number of points are also multiplied by the bonus multiplier.
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| Bonus Coin: Bonus coins will appear every time the score reaches a multiple of 5,000, until the Bonus Multiplier at the top of the screen reaches ×5. Each time Jack collects one, he will earn 1000 points and the multiplier will increase by one. Each stage begins with a Bonus Multiplier of ×1, so only four Bonus Coins will ever appear per stage.
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| Extra Coin: Extra coins appear whenever Jack has "killed" enough enemies by collecting them when they are coins. Collecting one will give Jack 3000 points, and one extra life.
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| Special Coin: Appearances of these coins are extremely rare. If you manage to be lucky enough to catch one, you will earn 5000 point, one free game, and you will automatically advance to the next stage.
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