Dangerous Seed/Gameplay

Controls

 * Joystick: Use the 8-way joystick to direct your current ship around the screen. They will always be moving forward automatically, but you can direct them anywhere.
 * Firing Button: Use this button to make your current ship fire shots at the enemies, if the arcade owner has set the "Shot" option dip switch to either "Rapid" or "Full".
 * Special Weapon Button: Use this button to make your current ship fire one of its special weapons at the enemies. They can possess a maximum of four at any time.
 * 1 or 2 Player Buttons: Push these buttons to begin a 1 or 2 player game.

Alpha Ship (α シップ)
Energy: 3. Special Weapon: Ring-Lasers. If Alpha Ship is unlucky enough to get destroyed in any of the first four stages, Beta Ship will make an attempt to get through.

Beta Ship (β シップ)
Energy: 4. Special Weapon: Melt-Missiles. If Beta Ship is unlucky enough to get destroyed after takeover Alpha Ship, Delta Ship will make an attempt to get through.

Delta Ship (γ シップ)
Energy: 5. Special Weapon: Hyper-Bombs. If Delta Ship is unlucky enough to get destroyed after taking over from both Alpha and Beta Ship, the game will be over.

Combined Ships
If you made it through the first four stages with all three ships intact, they will combine into the large ship with an energy of 12 on the left; however, if you were unlucky enough to let Alpha Ship get destroyed in any of the first four stages, the two remaining ships will combine into the smaller, medium-sized ship with an energy of 9 on the right. Both combined ships have Hyper-Bombs as their special weapon, and if you were unlucky enough to let both Alpha and Beta Ship get destroyed in any of the first four stages, Delta Ship will not have anything to combine with and must try to make it through the next four stages of the game alone.

Turtles
Each of the ships can gain up to four special weapons by destroying the Turtles and collecting the powerups that they leave behind. The green Turtles will only appear when you are controlling Alpha Ship, the blue Turtles will only appear when you are conntrolling Beta Ship, and the red Turtles will only appear when you are controlling Delta Ship (and either of the two Combined Ships during the second half of the game) - but the yellow Turtles will appear regardless of which ship you are currently controlling and will leave an Energy Capsule behind when destroyed, which will restore some of your ship's lost energy when collected. If you have the maximum of four special weapons, the green, blue and red Turtles will leave a Special Bonus powerup behind when destroyed, the point value of which will increase as the game progresses; however, the yellow ones will leave a Hyper-Booster behind when destroyed, which will make your ship fly directly to the end of the current stage (much like Beraboh Man did when he collected a Shinkansen powerup in his self-titled game) and return to its normal speed for the boss battle.