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hard-backed notebook STG1



  • indexed colors for sprites and backgrounds, for easy palette switching



  • 320 x 320



  • shoot-rank
  • survive-rank
  • medal-rank ( ? )
  • effective „blanking“ range (the minimum range you can be within for them to stop firing) shortens as rank increases. At default range, it’s likely to be around 1/2 to 1 1/4 ship lengths.


  • TYPE-A: High speed, fires front concentration shots
  • TYPE-B: Low speed, fires wide front area shots
  • SHOTIA: Increases shot power, 3 bombs (max 6)
  • LEINYAN: Increases laser power, 2 bombs (max 4)
  • EXY: Increases shot and laser powers, 1 bomb (max 2)


  • Shot-level



  • points every frame.


<precalculated bulletpaths. higher resolution that frames used. does collitions detection too, even between frames. slow down interlaved.


320 x 320 = 102 400

von ueberall nach ueberall
102400 ^2 = 10485760000 … uff … can not work with that number.







1 Enemy (boss)

ship moving, shooting


no powerups

no win

survive as long as possible




Vertical slice.




Then Yagawa spoke all these words:
I am Yagawa, your God, who brought you out of the land of Apple, out of the house of casual mobile „gaming“; you shall have no other gods before me.
You shall not make for yourself an idol, whether in the form of anything that is in the house of Cave Co. Ltd. above, or that is on the earth beneath, or that is in the water under the earth. You shall not bow down to them or worship them; for I Yagawa, your God, am a jealous God, punishing children for the iniquity of parents, to the third and the fourth generation of those who reject me, but showing steadfast love to the thousandth generation of those who love me and keep my commandments.
You shall not make wrongful use of the name of Yagawa, your God, for Yagawa will not acquit anyone who misuses his name.
Remember the sabbath day, and keep it holy. For six days you shall labour and do all your work. But the seventh day is a sabbath to YAGAWA your God; you shall not do any work—you, your son or your daughter, your male or female slave, your livestock, or the alien resident in your towns. For in six days Yagawa made Battle Garegga, Ibara, Pink Sweets, and Muchi Muchi Pork, but rested the seventh day; therefore Yagawa blessed the sabbath day and consecrated it.
Honour your father and your mother, so that your days may be long in the land that Yagawa, your God, is giving you.
You shall not fire excessively.
You shall not collect more power-ups than necessary.
You shall not hoard extra lives.
You shall not seal bullets.