Dangerous Seed/Gameplay

Controls

 * Joystick: Use the 8-way joystick, to direct your current ship around the screen; they'll always be moving forward, 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 that "Shot" option dip switch to either "Rapid" or "Full", you can press and hold down this button to make your current ship fire off continuously, but if he has set it to "Manual", you cannot.
 * 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 a time. Alpha-Ship has Ring-Lasers and Beta Ship has Melt-Missiles, while Delta Ship and both of the Combined Ships has Hyper Bombs.
 * 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. Despite being the smallest one of the player's three ships, its shots shall become the most powerful, as the game progresses.

Beta Ship (βシップ)
Energy: 4, Special Weapon: Melt-Missiles; If Beta Ship is unlucky enough to get destroyed after taking over from Alpha Ship, Delta Ship shall make an attempt to get through. It is slightly larger than Alpha Ship in horizontal width, and is therefore easier for the enemies to hit with their bullets.

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, your game will be over. It is the same size as Beta Ship in horizontal width which means it's just as easy as it for the enemies to hit with their bullets.

Combined Ships (合成シップス)
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 upon the right. Both of these 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 - and, those two Kanji characters in their Japanese name are also read as gōsei.

Turtles (タートルズ)
Each of the ships can gain up to four special weapons by destroying the Turtles and then collecting the powerups that they leave behind; the green Turtles shall only appear when you are in control of Alpha Ship, the blue Turtles shall only appear when you are controlling 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 shall leave a Special-Bonus powerup behind when destroyed, the point value of which will increase as the game progresses - however, the yellow ones shall leave a Hyper-Booster behind when destroyed, which will make your ship fly right to the end of the current stage, and return to normal speed for the boss battle.