Roshambo Run, a nightmarishly difficult, addictively elegant puzzle game, from The Brunching Shuttlecocks.
This is BrainLog, a blog by Dan Sanderson. Older entries, from October 1999 through September 2010, are preserved for posterity, but are no longer maintained. See the front page and newer entries.
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You move one square, then everything else on the board moves until they're done moving. If a rock, a crumpled paper, or a pair of scissors sees you, it heads straight for you and doesn't stop until it eats you. The trick is that the objects have more important things to eat. If a pair of scissors sees a piece of paper, it runs for it until it clobbers it. If paper sees a rock, whoosh, there it goes. If rock sees scissors, stomp stomp stomp crush crush crush.
If the line of sight of a pair of scissors stands between you and your coffee, but on its way toward you it would spot paper, you can step down and watch Mr. Clippers shoot towards you, then get sidetracked. Muffins block line of sight, so if you can then hide behind a muffin and run towards your coffee, you can finish the level.
The demo animation explains this. Level 1 is easily solved simply by running around the bottom and up the left; muffins protect you from the scissors. Level 2 is solved by moving left along the bottom three squares: scissors see you and dashes down, then sees paper and runs left, then sees another paper behind the muffin, goes down one and stops. You can then move up to your coffee, protected by muffins. Note that if you instead moved up to the top, scissors would spot you before you made it to your coffee and you'd be dead dead dead.
(It's actually a little too difficult to be truly addicting, but it's fun for a while.)
Other important rules: If a travelling item sees its prey, it diverts from its original path to head toward its prey. If a travelling item sees its predator, it stops in its tracks and waits for its predator to come clobber it. If an item sees more than one of its prey (that's not you), it goes for the closer one. Sometimes the strategy is not to lure a predator past its prey, but to lure prey past its predator.
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Arrr, Dan, I don't get it! What's with the muffins? What triggers the rocks and the scissors to move? Why do I keep on getting eaten?
- Not addicted