Soukyugurentai (a.k.a. Terra Diver) is an arcade Vertical Scrolling Shooter developed and published by 8ing/Raizing in 1996 for the Sega Saturn ST-V hardware, later being ported in 1997 to both the Sega Saturn and the PlayStation. Its gameplay is distinguished by having lock-on weapons similar to the RAY Series, except able to lock on to 3-D wireframe areas. Its music was composed by Hitoshi Sakimoto and Manabu Namiki.
In the year 2050, space mining operations are becoming competitive as the Bafu Interstellar Development Inc. starts muscling in on other companies in an aggressive manner. The Jin-Sei Corporation teams up with Japan to counteract Bafu. It is now up to a few pilots and their advanced space ships to save the day.
Soukyugurentai contains examples of the following:
- Actor Allusion: The Mission Control in the PS port was voiced by Miki Nagasawa, who notably voiced Bridge Bunny Maya Ibuki in Neon Genesis Evangelion.
- Asteroids Monster: One stage involves flying through the asteroid belt, complete with asteroids that get blown up into smaller but still-quite-deadly pieces. Of note is that your normal shot is too weak to harm them, but your lock-on will blow them up.
- Asteroid Thicket: The fourth stage is set in the asteroid belt with lots of asteroids floating around. Thankfully these don't count towards the enemy forces' destruction rate if they escape.
- Battleship Raid: The final stage, the High Altitude Relay and Attack plane 'Bakuzan'
- Corrupt Corporate Executive: Bafu Interstellar Development Inc. builds a whole military force and attacks other companies in order to achieve a monopoly. Notably, it's referred to as a "gongsi", implying a Chinese origin.
- Dynamic Difficulty: It is based on the number of power-up items collected and the percentage of enemies destroyed.
- Evil Counterpart: The final boss has a lock-on weapon just like the player.
- Fighter-Launching Sequence: The launch sequence before the first level takes 9.92 seconds to complete. The next two levels after that has the player ship launching from an Airborne Aircraft Carrier.
- Fire-Breathing Weapon: Third boss is a huge tank with two gigantic flamethrowers that can fire a single stream or even a Spread Shot of them.
- Homing Projectile: All of the homing weapons of the playable characters, and many missiles used by the enemies.
- Humongous Mecha: The boss of stage 4, the General Purpose Strategy Aggressive space craft 'Akitaka'
- Kill Sat: The boss of stage 2, the Anti-Space Anti-Ground satellite Shin-Sen
- Macross Missile Massacre: The boss of Stage 1 does this after you destroy its laser cannons.
- MegaCorp: At a minimum, the Jin-Sei Corporation and Bafu Interstellar Development are this.
- One Nation Under Copyright: According to lore, Bafu is headquartered in a small Asian country called Corporate Nation Enigma, which they essentially own.
- Required Secondary Powers: Each of the pilots has undergone strengthening procedures so that they can survive high-speed dogfighting in deep space.
- Roboteching: The playable characters fire a lot of bending beams.
- Tank Goodness: There are many enemy tanks, but one that stands out as the boss of stage 3 is the Grapple Strategy Attack tank 'Don-Ryu'
- Took a Level in Badass: The final boss of the game is the final form of the very first boss of the game minus the missile launchers... but now with the player's own Lock-On abilities.
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