(13 years ago) Cute ! I got this one 1st try, too. :)
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EDIT 2022, 22nd Oct., - no idea, how I saw this 1st try, years ago. Today, it took me much more: 8 tries. And was doing all sorts of blunders, while searching for 90. :) Great level, well hidden path.
REALLY cool optimization in one part of the level, unfortunately the design is just all over the place and there's a ton of very obvious filler sections. This trick in a more streamlined level would be excellent.
