Pitfall II
platformer game for Commodore 64, 1984

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Use Control Port 1.
Press F7 to start!
FOES
Frog: avoid it by descending diagonally into the ladder, waiting until it
jumps to the other side, and exiting diagonally from the ladder.
Bat: avoid passing below them when they are at their higest position with the
wings pointing up.
Bird: avoid passing below them when they are at their higest position.
Scorpion: jump over it, beware some of them keep chasing you.
Electric serpent: avoid touching it.
ITEMS
Mark: a red croos in the ground, hitting them you will go to this mark
if you're killed.
Balloon: to climb up. You can control the speed of climb,
and move sideways.
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Some useful keyboard shortcuts
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[PAUSE] - stop/continue game
[F9] - quick load game state
[F12] - quick save game state (still stored after leaving the site)
[F11] - toggle fullscreen mode
[ScrollLock] - quick switch control ports
[PageDown] - make a screenshot (320x200)