In order to free up my scratchpad, here's my entry for the no \w characters portion of this contest. There are numeric operators, but no underscores (which was a trick unto itself). The invocation of the script is not counted towards the "no \w character limit", or at least i didn't count it...

Well, ok, the first version uses 4 letters ('e', 'v', 'a', and 'l') and the second version reuires a special invocation. And no, neither of them are remotely strict or warning compliant. But hey, it's the best i could do. i'd be interested in seeing other's attempts (should they choose to go insane and try this as well :)

enjoy,
jynx

# 1
# requires no special invocation, uses 'e','v','a','l'
%!=('!'=>$|+@{[$"]},'@'=>$|+@{[$",$"]});($;{'!'})=$::{'"'}=~/\*.(.)/
;$;{'^'}=$;{'#'}=$;{'!'};$;{'~'}=++$;{'^'};$;{'='}=++$;{'^'};$;{'('
}=++$;{'^'};$;{'!'}=($;{'*'}=++$;{'^'}).$;{'!'};$;{'*'}++;$;{'*'}++
;$;{'='}.=++$;{'*'};($;{'@'})=$::{'"'}=~/\*..(.)/;$;{'&'}=$;{'@'};$;
{'&'}++;$;{'&'}++;$;{'!'}.=++$;{'&'};($;{'*'})=$::{'@'}=~/\*(.)/;$;
{'#'}=$;{'*'}.$;{'#'};($;{'&'})=$::{'$'}=~/\*...(.)/;$;{'@'}.=$;{'&'
};$;{'%'}=$;{'$'}=++$;{'&'};$;{'('}=$;{'%'}.$;{'('};$;{'*'}=++$;{'&'
};$;{'@'}=$;{'*'}.$;{'@'};$;{'#'}.=$;{'&'};$;{'$'}=$;{'*'}.$;{'$'}.
$;{'&'};$;{'*'}++;@;=$;{'('}=~/(.)(.)/;$;{'('}=$;[$|].++$;{'*'}.$;[
$!{'!'}];$;{'='}.=$;{'*'};@;=$;{'@'}=~/(.)(.)(.)/;$;{'@'}=$;[$|].$;
{'*'}.$;[$!{'!'}].$;[$!{'@'}];$;{'~'}=++$;{'*'}.$;{'~'};$;{'@'}.=++
$;{'*'};@;=$;{'~'}=~/(.)(.)/;$;{'~'}=$;[$|].++$;{'*'}.$;[$!{'!'}];@;
=$;{'!'}=~/(.)(.)(.)/;$;{'!'}=$;[$|].++$;{'*'}.$;[$!{'!'}].$;[$!{'@'
}];($;{'*'})=$::{'"'}=~/\*(.)/;
eval
$;{'~'}.$".$;{'^'}.'{'.$;{'!'}.$".$;
{'$'}.'}';$;{'^'}->($;{'~'}.$".$;{'%'}.'{'.$;{'('}.$".$;{'$'}.'}');$;
{')'}=$;{'^'}->($;{'='}.'($=+'.$;{'^'}->($;{'('}.'"#"').')');$;{'^'}
->($;{'~'}.$".$;{'&'}.'{'.$;{'@'}.'@'.$;{')'}.'}');$;{'^'}->($;{'~'}
.$".$;{'*'}.'{'.$;{'#'}.'{'.$;{'&'}.'(@'.$;{')'}.'.$");'.$;{'$'}.'@'
.$;{')'}.'}@'.$;{')'}.'}');$;{'*'}->($",$",$",$",$",$",$",$",$",$")


# 2
# call using: perl -e 'sub e{eval"@_"}do"./foo"'
# where 'foo' is the filename where the code is stored
%!=('!'=>$|+@{[$"]},'@'=>$|+@{[$",$"]});($;{'!'})=$::{'"'}=~/\*.(.)/
;$;{'^'}=$;{'#'}=$;{'!'};$;{'~'}=++$;{'^'};$;{'='}=++$;{'^'};$;{'('
}=++$;{'^'};$;{'!'}=($;{'*'}=++$;{'^'}).$;{'!'};$;{'*'}++;$;{'*'}++
;$;{'='}.=++$;{'*'};($;{'@'})=$::{'"'}=~/\*..(.)/;$;{'&'}=$;{'@'};$;
{'&'}++;$;{'&'}++;$;{'!'}.=++$;{'&'};($;{'*'})=$::{'@'}=~/\*(.)/;$;
{'#'}=$;{'*'}.$;{'#'};($;{'&'})=$::{'$'}=~/\*...(.)/;$;{'@'}.=$;{'&'
};$;{'%'}=$;{'$'}=++$;{'&'};$;{'('}=$;{'%'}.$;{'('};$;{'*'}=++$;{'&'
};$;{'@'}=$;{'*'}.$;{'@'};$;{'#'}.=$;{'&'};$;{'$'}=$;{'*'}.$;{'$'}.
$;{'&'};$;{'*'}++;@;=$;{'('}=~/(.)(.)/;$;{'('}=$;[$|].++$;{'*'}.$;[
$!{'!'}];$;{'='}.=$;{'*'};@;=$;{'@'}=~/(.)(.)(.)/;$;{'@'}=$;[$|].$;
{'*'}.$;[$!{'!'}].$;[$!{'@'}];$;{'~'}=++$;{'*'}.$;{'~'};$;{'@'}.=++
$;{'*'};@;=$;{'~'}=~/(.)(.)/;$;{'~'}=$;[$|].++$;{'*'}.$;[$!{'!'}];@;
=$;{'!'}=~/(.)(.)(.)/;$;{'!'}=$;[$|].++$;{'*'}.$;[$!{'!'}].$;[$!{'@'
}];($;{'*'})=$::{'"'}=~/\*(.)/;$;{'~'}.$".$;{'^'}.'{'.$;{'!'}.$".$;
{'$'}.'}';$;{'^'}->($;{'~'}.$".$;{'%'}.'{'.$;{'('}.$".$;{'$'}.'}');$;
{')'}=$;{'^'}->($;{'='}.'($=+'.$;{'^'}->($;{'('}.'"#"').')');$;{'^'}
->($;{'~'}.$".$;{'&'}.'{'.$;{'@'}.'@'.$;{')'}.'}');$;{'^'}->($;{'~'}
.$".$;{'*'}.'{'.$;{'#'}.'{'.$;{'&'}.'(@'.$;{')'}.'.$");'.$;{'$'}.'@'
.$;{')'}.'}@'.$;{')'}.'}');$;{'*'}->($",$",$",$",$",$",$",$",$",$")
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