There, the player controls a ship that resembles a pen. Holding the Z key and moving draws a shape, and releasing Z launches the drawn shape to use as a projectile.
This game provides examples of:
- Attract Mode: One acts as the game's tutorial, looping indefinitely until the player presses 4 to start the game.
- Defeat Equals Explosion: Played straight for both the player and the enemies.
- Destructible Projectiles: The blue projectile you draw will cancel out any of the red enemies' shots it hits.
- Difficulty by Acceleration: The enemies increase in speed and will shoot more often whenever a level is completed.
- Endless Game: The game will continue to add on levels with faster, more numerous enemies every time a previous level is completed.
- No Plot? No Problem!: To replicate the standard of most games from the earlier 1980s.
- One-Hit-Point Wonder: The player ship will be instantly destroyed when it is shot or when it crashes into an enemy.
- Retraux Games: This game was created as if it was from 1983.
- Shout-Out: The game was inspired by Qix by its sound effects, the player entrance, and the gameplay.
- Stock Sound Effects: Averted compared to several earlier works. The sound effects in this game were created using Chiptone, and Labchirp.
- Worf Barrage: The shape projectile becomes increasingly weaker when the player continues to draw on it. Explained in the Attract Mode tutorial sequence.