Parodius (MSX)

Often (not consistently), sprites and starfield move in 3-frame cycles:
1. Bullets and half the background starfield
2. Player and enemies
3. Other half of starfield
The tile-based background moves 8-pixels every 24 frames.

Powerups:

FASTER  NUKE'EM  2DEATH  DIE ALL  NINJA   OH GOD     ARMORED
------  -------  ------  -------  ------  ---------  -------
Speed   Ground   Double  Laser    Option  Remove     Shield
        Missile  Shot                     Power-ups

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