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Game Play Basics

New to the game? Start here before hitting the Secrets section. No spoilers — just the fundamentals to get you hooked.

For more information on basics and strategies for the 2026 Enhanced version of the game, see this page.

Stick & Dodge

Kill aliens without getting killed. Power up your weapon from single shot through double, triple, quad, and eventually the devastating death weapons. Alien sub-bosses specialize in lateral shots — keep out of the corners when they appear.

Recruit from the Enemy

Capture enemy ships using the Scope bonus. With two captured aliens flanking you, the Scope's powerful beams will instantly clear descending ships. Invaluable for bonus stages and dense opening waves.

Get the Money

Money is not optional — it is survival. Cash buys weapons, armour, extra lives, speed, and secrets. Pick up coins from dead aliens, grab chests in Meteor Storm, match dollars in Memory Station. There are also secret methods. The blue coin ($200) is king.

The Mini-Games

Meteor Storm

A dodge-the-rocks gauntlet of increasing speed and density. Numbered rocks give points; money chests are your payday. If you make it through, the rewards are substantial. Activate the fire button to accelerate — push through the sparse first third quickly to build reflexes for the chaos ahead.

Memory Station

Timed Concentration. Uncover boxes two at a time looking for matches. Prizes include extra lives, E-X-T-R-A letters, credits, multipliers, rank markers, and extra time. A skull ends your run immediately. Know what you're hunting before you start.

Other Elements

Catch E-X-T-R-A letters for a free ship. Grab bonus multipliers (×2, ×5) whenever possible. Collect Ship Armour — it is cumulative and saves your skin late-game. The Shield is temporary but devastating on Kamikaze levels.

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Glossary

Every item, enemy, bonus and game mechanic — defined. Items appear in all versions of the game unless otherwise stated.

Damage
Weapon Powerup
Increases the damage output of your current weapon. Stack multiple pickups for devastating firepower against tougher enemies and bosses.
Occurrence: Frequent
Version: Enhanced
Missiles
Weapon Powerup
Fires homing or straight missiles alongside your primary weapon. Significant boost to clearing dense waves and sub-bosses.
Occurrence: Infrequent
Version: Enhanced
SkullsSkullsSkulls
Skulls
Game Element
Catch only. Red, blue, and green. Degrade weapon, Extra Bullet, and Speed and Damage by one level. Can be used to unlock special weapons and upgrade Continues with features. Different combos give different rewards. See the Enhanced page for more information.
Occurrence: Frequent
Version: Enhanced
Auto-Fire
Auto-Fire
Weapon Powerup
Catch or purchase ($250). Continuous fire while holding the button; concentrated bursts by tapping.
Occurrence: Frequent
Bonus MultiplierBonus Multiplier
Bonus Multiplier
Bonus
Catch or win in Memory Station. Multiplies scored points from alien kills for a limited time. Does not affect money.
Occurrence: Frequent
Boss
Enemy
Appears on dedicated boss levels as the sole enemy. Very dangerous. Very big. Very nasty.
Occurrence: Boss Levels
CurrencyCurrency
Currency
Currency
Catch only. Four coin colors: grey=$10, orange=$50, green=$100, blue=$200.
Occurrence: Frequent
Double Shot
Double Shot
Weapon Powerup
Catch or purchase ($100). Two side-by-side rounds per press. Fast shot speed.
Occurrence: Frequent
Drunk Mode
Ship Upgrade
Random Mystery Bonus only. Temporarily reverses player controls. Stay out of trouble until it wears off.
Occurrence: Infrequent
E-X-T-R-AE-X-T-R-AE-X-T-R-AE-X-T-R-A
E-X-T-R-A
Bonus
Collect all five letters to earn an extra ship. Duplicates still give bonus points.
Occurrence: Frequent
Extra Bullet
Weapon Powerup
Catch or purchase ($75). Allows more simultaneous rounds on screen. Upgradeable multiple times.
Occurrence: Frequent
Extra Life
Extra Life
Bonus
Catch or purchase ($400). Shop purchase can be assigned to either player.
Occurrence: Infrequent
Extra Speed
Extra Speed
Ship Powerup
Catch or purchase ($50). Increases ship movement speed. Upgradeable multiple times. Essential for Meteor Storm.
Occurrence: Frequent
Extra Time
Extra Time
Bonus
Catch or win in Memory Station. Extends level timer / Memory Station timer. Purchased Extra Time persists across rounds.
Occurrence: Very Infrequent
Fire Balls
Weapon Powerup
Purchase only ($750). Giant single-round fireballs. Fast. Powerful. Best shop value for firepower.
Occurrence: Shop Only
Game Secrets
Game Element
Purchase ($1,000). Reveals the 14 secrets of the game in-game. Worth every dollar.
Occurrence: Shop Only
Gem Bomb
Gem Bomb
Bonus
Catch only. Destroys all weak aliens; they release waves of gems with significant point value.
Occurrence: Infrequent
Hurry Up Ship
Enemy
Appears when you stall on a level. Releases semi-guided missiles. Killable; drops a Rank Marker and reduces missile intensity.
Occurrence: Frequent
Kamikaze Level
Game Element
Level where the alien set sends tight, rapid waves. Destroy all waves for escalating point bonuses.
Occurrence: Frequent
Laser Ship
Laser Ship
Enemy
Rare visitor that sweeps across the screen shooting lethal laser bolts. Difficult to kill — requires Fireballs or better with Auto-Fire.
Occurrence: Very Infrequent
Memory Station
Memory Station
Game Element
Timed Concentration mini-game. Match boxes to win bonuses. Skull = instant exit. No life at risk.
Occurrence: Infrequent
Meteor Storm
Game Element
Dodge-the-rocks mini-game with increasing difficulty. Complete it for 100,000 points and $1,000. Two players can participate. No life at risk.
Occurrence: Infrequent
Mirror Mode
Mirror Mode
Ship Upgrade
Catch only. Creates a mirrored copy of your ship. Impervious to attack. Easy to lose track of your real ship.
Occurrence: Infrequent
Money Bomb
Money Bomb
Bonus
Catch only. Destroys weak aliens; they release waves of coins. Prioritize blue coins ($200) during the shower.
Occurrence: Very Infrequent
Money Ship
Money Ship
Enemy
Appears under a specific condition (see Secrets). Drops ~$2,000 in coins when destroyed. Cannot harm the player.
Occurrence: Special
Mystery Bonus
Mystery Bonus
Bonus
Catch only. Gives a random bonus — often Drunk Mode, but can be almost anything catchable including money and powerups.
Occurrence: Frequent
Quad Shot
Quad Shot
Weapon Upgrade
Catch only. Four rounds in a slight spread pattern, straight up. Slow shot speed. Best in Warp Malfunction levels.
Occurrence: Very Infrequent
Rank MarkerRank MarkerRank MarkerRank Marker
Rank Marker
Game Element
Catch, purchase ($300), or win. Six colored orbs — collect all six to advance rank. Higher rank = bigger end-game bonus. Admiral rank + extra purchase = 1,000,000 points.
Occurrence: Frequent
Ship Armour
Ship Armour
Ship Upgrade
Catch or purchase ($600). Cumulative up to four. Each absorbs a single hit plus grants a brief invulnerability window.
Occurrence: Infrequent
Single Shot
Single Shot
Weapon Upgrade
Catch only. Default weapon. Single round, medium speed.
Occurrence: Frequent
SkullsSkullsSkulls
Skulls
Ship Upgrade
Catch only. Red, blue, and green. Degrade weapon, Extra Bullet, and Speed by one level each. But see Secret #6…
Occurrence: Frequent
Sub-Boss
Sub-Boss
Enemy
Larger aliens in Warp Malfunctions and regular levels. Lateral-shooting specialists — death drops a Rank Marker.
Occurrence: Special
Super Weapon
Weapon Powerup
Purchase only ($500). Similar to Triple Shot but more powerful bullets and faster rate of fire.
Occurrence: Shop Only
Thief Ship
Thief Ship
Enemy
Random appearance. Steals all carried money instantly. Can be killed with a high-level weapon. Cannot take your life.
Occurrence: Very Infrequent
Triple Shot
Triple Shot
Weapon Powerup
Catch or purchase ($200). Three rounds: one straight up, two at 45° angles. Slow shot speed.
Occurrence: Infrequent
Warp
Warp
Game Element
Triggered by catching a warp icon or game event every few levels. Takes you to the shop.
Occurrence: Infrequent
Warp Malfunction
Game Element
Randomly occurs during a Warp. Drops you into a sub-boss arena. Can chain up to 4 consecutive malfunctions.
Occurrence: Infrequent
xC (Extra Credit)
Currency
Win in Memory Station only. Grants an additional Continue option for future game-over screens.
Occurrence: Infrequent
Egg Gem
Bonus
Catch only. Worth $1,000 — drops only when you kill the Laser Ship.
Occurrence: Special