Play through 5 stages in this mode. When save data is available, Continue will be available alongside New Game after selecting Arcade Mode.
Play any stage completed in Arcade Mode.
View high scores and change various settings here.
Exit the game.
Check your high scores.
Change screen and sound settings.
The player takes control of a Cannon and uses it to fight off the oncoming Invaders. Once a wave is destroyed, a new wave of invaders will appear. If the Cannon collides with an Invader or one of their shots, or the Invaders reach the bottom of the screen triggering an "Invasion", the player loses one life. Once all a player's lives are gone, it's game over.
Pressing the ESC or backspace key during the game will stop the game and display the pause menu. Pressing either key once more will resume the game.
- RESUME GAME
- Resume the game.
- Restart from the beginning of the stage.
*Your score will be reset.
*Pre-restart score will not be registered on leaderboards.
- Quit and return to the title screen.
- Change screen and sound settings.
- View the keyboard controls.
- ① STAGE
- The current stage.
- ② WAVES
- The current wave/total number of waves.
- ③ RATE & RATE GAUGE
- The current rate (multiplier) and gauge.
- ④ CHAIN & CHAIN GAUGE
- The current chain number and gauge.
- ⑤ SHOT LEVEL
- The current shot level.
- ⑥ CANNON STOCK
- Number of remaining cannons (lives).
- ⑦ SCORE
- The current score.
- ⑧ FEATURE PANEL
- The current status of the features.
- ⑨ POWER GAUGE
- The remaining time for any power-ups collected or rewarded from fever.
- ⑩ LAMP
- Any bonuses completed will be lit.
- ⑪ CANNON
- The player's craft.
Upon completing a stage, the result screen will be displayed, and various bonuses will be rewarded dependent on performance. Achieving A or S ranks gives access to more stages to select from.
- ① UFOS
- Number of UFOs shot down.
- ② FEATURES
- Number of completed features.
- ③ MAX CHAINS
- Maximum number of chains.
- ④ CANNONS
- Number of lives remaining.
- ⑤ BREAKS
- Number of breaks achieved.
- ⑥ FEVER
- Number of times fever achieved.
- ⑦ ROUTE BONUS
- A bonus rewarded for the final stage.
Arcade Mode automatically saves player progress just after the result screen. However, there is only one save slot, so choosing Continue from Arcade Mode will restart the game from the where the last play session ended.
Allows the game to be continued after all cannons have been lost. However, the score will be reset and will not be registered on the leaderboards.
Restart from the beginning of the stage.
NB: Your score will be reset.
*Pre-restart score will not be registered on leaderboards.
Once the game has been completed or upon game over, the total score is ranked and recorded on the leaderboards.
Play stages individually with the same basic rules as Arcade Mode. Any stage finished in Arcade Mode can be selected.
Once the stage has been completed or upon game over, the total score is ranked and recorded on the leaderboards.
The cannon levels up as the score increases, powering up the shot at the same time. However, a level is lost each time the cannon is destroyed.
Destroying invaders and UFOs in succession is called a chain. The chain increases with every enemy destroyed before the chain gauge runs out.
While chaining, a chain icon will appear beside the cannon.
Destroying invaders increases the rate gauge and adds 1 to the multiplier when the gauge is full. The gauge gradually decreases the chain is broken. Rate is reset once a stage is finished.
Breaks occur every time a chain of 100 is reached and temporarily grant a 16x rate.
Feature refers to a 'hand' which is completed by shooting down invaders in a certain order (same colour, type). The order is displayed on the feature panel. However this is only displayed before a feature is about to be completed and disappears upon failure.
- POWER-UP FEATURE
- A power-up feature is completed by destroying 4 invaders of the same colour which triggers a power-up item drop.
- ROUND FEATURE
- Completing 2 power-up features in a row with different colours triggers a round feature, and the appearance of a flashing UFO. Shooting this down will start a bonus round.
- CHANGE TO UFO
- Destroying 8 octopus in a row completes the change to UFO feature and all invaders on screen are changed to UFOs.
- ROULETTE FEATURE
- Destroying 4 squids in a row followed by 4 crabs triggers the roulette feature and the appearance of a roulette UFO.
Shooting down a flashing UFO stops the game and takes the player to a bonus round. During a round, the player must complete one of several mini games within a set time. Successfully completing a round restarts the game in fever.
Successful completion of a round restarts the game in fever. During fever, the cannon is given a powered-up weapon, making destroying waves much easier.
A bonus is added to the score depending on how many invaders are shot down during fever. After a fixed amount of time, fever will end.
A jackpot bonus is rewarded for shooting down a white/yellow flashing jackpot UFO during fever. A super jackpot bonus is available for shooting down a yellow/purple flashing UFO.
The lamps in the background light up upon shooting certain invaders in the correct order.
- Destroy a 4 or more invaders in a vertical line.
- Destroy a 6 or more invaders in a horizontal row.
- SAME COLOR
- Destroy 10 or more invaders in a row of the same color.
- SAME SHAPE
- Destroy 10 or more invaders in a row of the same shape.
Shooting down a roulette UFO stops the game and takes the player to an invader roulette. A well-timed shot is needed.
Collecting a power-up item grants the cannon a temporary power-up. The amount of time depends on the type of power-up.
|LASER||A beam weapon which fires through almost anything, but is unable to damage reflect invaders.|
|BOMB||Explodes on impact, damaging everything nearby. It lacks rapid fire, but can damage reflect invaders without risk.|
|BROAD SHOT||Fires 5 shots at a time. Lacks rapid fire, but can take out enemies and their shots at the same time.|
|SHIELD||Protects the cannon from enemy attacks. It stands out amongst the power-ups with a comparatively long usage time.|
|POWER HOLD||During power-up, holding down shift key enables the player to retain the power-up. During this time, the power-up gauge will not deplete and the cannon will fire normal shots.|
INVADERS & UFOS
There are numerous types of invaders whose abilities cover a whole range of characteristics.
|NORMAL||The most standard invader.|
|BOMB||When shot, it explodes taking nearby invaders and the cannon with it. Some varieties home in on the cannon.|
|ARMOR||This invader is equipped with armour and requires several shots to destroy. The armour's durability depends on its size.|
|ROLL||An extremely thin alien which turns on its side, making it extremely difficult to hit.|
|BURST||Fires in 3 directions when destroyed.|
|REFLECT||Reflects shots from the cannon. Two types exist: one with a single use reflector and a second with a reflector which opens and closes.|
|COLOR CHANGE||Changes colour once every several seconds.|
|SPLIT||Divides itself into multiple invaders when damaged. Two types exists: one splits in two, the other into three.|
|ASSAULT||Once damaged, it immediately attempts an "Invasion". One type will charge straight forward, another moves forward and sideways in short bursts.|
|MIDDLE-SIZE||A mid-size invader. Some types move in formation, others stay still and fire lasers.|
The colour of the invaders has a very strong relationship to the bonus features.
|BLUE||Completing a power-up feature with this invader grants a laser item.|
|RED||Completing a power-up feature with this invader grants a bomb item.|
|GREEN||Completing a power-up feature with this invader grants a broad shot item.|
|BLACK||Completing a power-up feature with this invader grants a shield item. This colour will not contribute to a round feature.|
|WHITE||A special type of invader which will not affect features if shot down.|
There are also numerous types of UFO. They are worth a lot of points, so should not be missed.
|NORMAL||The basic UFO. Some types will attack.|
|LASER||Stops suddenly during movement and fires a laser.|
|SUPPORTER||Adds additional invaders to a wave while moving.|
|ROULETTE||Starts a roulette.|
|FLASHING||Appears when a round feature has been completed and starts the round if shot down.|
|ROUND||Starts a bonus round. The round will be selected at random.|