Gameplay
The gameplay of Millipede is similar to Centipede but differs mostly in enemies:
- Earwig: same as the scorpion in Centipede, making mushrooms poisonous so that the millipede will charge straight to the bottom of the screen after touching them.
- Bee: same as the flea in Centipede, dropping mushrooms in a vertical line and requiring two shots to kill.
- Spider: same behavior as in Centipede, bouncing irregularly across the lower portion of the screen and eating mushrooms. Multiple spiders can appear at the same time on higher levels.
- Inchworm: when hit, slows all enemies for a short period of time.
- Beetle: crawls around the player area for a while, then climbs up and leaves the screen, turning any mushrooms it touches into indestructible flowers. When hit, everything on the screen scrolls down one row.
- Dragonfly: drops mushrooms while zigzagging down, and can be destroyed with a single shot.
- Mosquito: bounces off the sides of the screen as it descends. When hit, everything on the screen scrolls up one row.
- DDT bomb (stationary): can be blown up with one shot, destroying all enemies and mushrooms within the blast radius. Whenever the mushrooms scroll down, a new bomb is added at the top of the screen. Up to four bombs can be in play at one time.
All flowers and poisoned/partially destroyed mushrooms revert to normal, whole mushrooms when the player loses a life.
At regular intervals during the game, the player will face a swarm of enemies (bees, dragonflies, etc.) instead of the usual millipede. Each enemy destroyed awards increasing points, up to a maximum of 1,000 points per enemy; this attack ends when either the entire swarm has passed or the player loses a life. Also, at intervals new mushrooms will grow on the field while others die off, in a pattern similar to Conway's Game of Life.
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