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The story of Nanostray is fittingly simple for a shoot 'em up. The protagonist has recently awoken inside of his ship, the SHN-2K5, having lost all memories. He finds that a location is still programmed into his ship's console, and chooses to proceed to his destination while combating enemy ships.
At its core, Nanostray's gameplay matches that of the typical shoot 'em up. The player is in control of a small ship with a disproportionately massive amount of firepower. This ship must be guided through waves of enemies, with each level culminating in a boss encounter. Weapons The player may switch between four separate weapon types on the fly through use of the touch screen. Each of these weapons has its own secondary, more powerful method of firing. These secondary weapons share an energy bar that may be replenished by collecting blue coins.
Pulse Sub-weapon: The sub-weapon of the pulse is a solid beam that fires directly forward. Like the pulse itself, it is an efficient damage-dealing weapon, and will serve effectively in most situations.
Side-shot Sub-weapon: The sub-weapon of the side-shot is a powered up version of the main side- shot, firing more rapidly and in a narrower range.
Seeker Sub-weapon: The sub-weapon of the seeker is a single, large burst of energy that homes in on and deals a great deal of damage to a single target.
Lightning Sub-weapon: The sub-weapon of lightning is a cluster of electric beams that surrounds the SHN-2K5, dealing a large amount of damage in a circular pattern. This weapon is best used against enemies that attempt to surround the ship. Coins Two different kinds of coins may be collected as a reward for defeating enemies. Yellow coins are dropped by large enemies, and they reward the player with bonus points. Blue coins, which are dropped when a wave of small enemies is defeated, will refill the sub-weapon's energy bar, grant brief invulnerability, and give points. If the player refrains from using any of the sub-weapon bar between collecting blue coins, a point multiplier begins to form, granting an extra 500 points per coin until a sub-weapon is used, breaking the multiplier. The ship is capable of sucking in coins at the press of a button, but doing so results in a lower score at the end of the level.
Scoring at the end of each level takes into account numerous factors based on the player's performance. These factors are displayed separately at the end of each level, adding up to a "New Score" that represents your total score for the level. This score is accompanied by a letter grade to apply comprehensible value to the score.
Adventure Adventure mode takes the player through several sectors, allowing a choice between a cluster of a few levels at a time, ramping up the resistance level with each new sector. The levels, in order that they are presented, are:
Arcade Arcade mode allows the player to select any level and play through it for a high score. The player may then generate a NanoCODE to share on the game's official website. Challenge Challenge mode provides 22 separate tasks for the player, in which he or she must strive to either earn a high score on a level or complete it with handicaps. Each completed challenge unlocks either a piece of concept art, an enemy model, or a piece of level music.
Nanostray features single-card simultaneous multiplayer, offering multiple competitive game modes. A sudden death variant is offered for each mode, in which death results in an instant loss, regardless of score. Game Modes