Hey. It's hard to find rules for the new "mutant" mode. They are in the source code but it doesn't really help normal people. So here's copy-paste from mutant.lua.

GAME RULES
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Recommended settings:
* one hedgehog per team
* 'Small' one-island map
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First one to kill anyone becomes Mutant. Mutant has super-weapons
and a lot of health, which however depletes if he doesn't frag fast.
Goal of Mutant is to use his weapons to hold his status for as long
as he can.
Goal of others is to hunt the Mutant down. The one who kills Mutant,
becomes Mutant himself.
The player with least points (or most deaths) is Bottom Feeder. He
can gain points by killing anyone. Other normal players only get points
for killing Mutant.
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Points:
+2 for becoming a Mutant
+1 to a Mutant for killing anyone
+1 to a Bottom Feeder for killing anyone
-1 to anyone for a suicide
other kills don't give you points.
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