I took the liberty of shortening your Japh, while getting rid of the need to clear the screen. It does keep the logic though: 
$_='@26^37#30%5e.37%32%25^36@39@21.36%65%40#37!34^40@32!30!40#32.32@40
+%34#61#26@32%65^21#34#31%40@32%65@21#35@30@5e.32.65@25.34.38^25^32%65
+!21@32.30#23&35@63!2e!36^65.25@32^32^40!33&62';$"=$';close STDERR;l:s
+plit/\W/;s/[a-f0-9]{2}/chr(hex$&)/eg for@_;$_="@_";eval||goto l

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In reply to Re: J.A.P.H. with intentional eval failure by Anonymous Monk
in thread J.A.P.H. with intentional eval failure by ktross

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