Gameplay
The gameplay of RayCrisis is based on RayForce, which features a viewpoint given to the player with an overhead perspective. The game is a vertically-scrolling shooter with a "virus infiltration" theme: the player plays the role of the Waverider computer virus, and the enemies he or she encounters are Con-Human's antibodies, programmed to terminate any virus—including the player—getting inside the supercomputer's system.
An Encroachment system is added, which causes player to lose points when it reaches 100%, especially facing Dis-Human and Infinity prematurely when reaching a huge Antibody, in addition to a bad ending. Encroachment percentage can be lowered by deleting Antibodies, terminating huge Antibodies or obtaining items, keeping a low profile not to be recognized by Con-Human.
The game starts with Self-Area, followed by 3 other stages out of the following: Emotion, Consciousness, Intelligence, Memory, or Consideration, each reflecting Con-Human's details of sentience. After completing stage 4, having the emergency control activated by Con-Human because of the havoc the player have caused, the Waverider computer virus must fight against the Dis-Human Antibody, and Infinity, Con-Human's heart.
The player is given three ships called Waveriders to choose from at the start of the game:
- WR-01 - a ship resembling the R-Gray 1 from RayStorm in terms of firepower. It features a wide laser attack and can lock onto 8 targets at a time.
- WR-02 - a ship resembling the R-Gray 2 from RayStorm. Uses a narrow-angled focused laser for its main gun and it has a max capacity of 16 lock-ons available to the player and uses a weapon called the "thunder laser".
- WR-03 - a brand new design. Removes the lock-on feature and forces the player to use a powerful photon chain gun. Its primary weapons are small guided missiles that swarms the enemies but is weak in terms of hitting power. In the original arcade version, this craft must be unlocked.
Additionally, the two original ships from RayStorm (R-Gray 1 and R-Gray 2) can be unlocked on the PlayStation version.
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