Loopin'
arcade action game for Commodore 64, 2020

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Use Control Port 2.
For some weird reason, as if decided by a million indies, one or more trolleys
are stuck in a loop. To break out you need to manually switch crossings.
Collect a crystal on every spawn spot to advance to the next stage.
Move your cursor over a crossing. When it can be toggled the cursor blinks
white. Keep the button pushed for any trolley to change direction when
passing by. This affects not only your own trolleys (grey), but also the
fiendish ones (red).
If one of your trolleys collides with a fiendish one, it’s game over.
All in all there are 10 stages of varying difficulty.
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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)