Spaceman Splorf: Planet of Doom
one button arcade game for Commodore 64, 2016

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The Story So Far
You are Splorf, Space Corp Sanitation Engineer 5th Class, Lavatorial Division.
A small yet vital cog in the corporate machine. You are good at your job.
Another 20 years, and you could possibly make 4th Class Engineer. But today
your mind is on other things than your job.
The rumours have reached even the lowest levels of Methane Station; the
harvest ships have returned from their latest run to the Doom system with
more than just gas - they brought disastrous news concerning the defensive
system protecting Space Corp's interests from space pirates and fierce
competitors!
"You there", a middle manager shouts at you, "Commander Splix needs a
volunteer! Get your lazy plarp up to level 17 immediately!"
As you step into the turbolift, you nervously repeat the creed to yourself:
"This is my spanner. There are many like it, but this one is mine..."
Controls
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The game can be played using the keyboard or a joystick in port 2.
Pressing space or fire during the intro will skip to the title screen.
Pressing space or fire on the title screen will start the game.
Pressing space or fire ingame will make Splorf move upwards, away from the
planet surface.
Releasing the space bar or fire button will make Splorf drop towards the
planet.
High Score Table
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If you get a high score, you can enter your name in the high score table using
the keyboard or the joystick. The next time you get a high score, you can
press fire or F7 to automatically fill in the previous name you entered.
The "Today's Top 10" table is reset every time you load and run the game.
Sound Options
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Press F1 to select music 1-8 or silence
Press F3 to turn sound effects on/off
These keys work both ingame and on the title screen.
You can also use a joystick to select music/sfx while on the title screen.
If a second SID chip is installed at $d420-$d4e0,
it will be autodetected when the game starts,
enabling the option to play sound effects and music simultaneously.
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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)