How about add Berserk end category? Berserk end's info(titled Kill Tor) - http://www.remar.se/daniel/iji2guide_sectorx.php

This end needs over 300 total kills before meet Tor. For over 300 kills, runner should use various nano-weapon - Buster gun, Spread rocket, Nuke, Plasma cannon, Velocithor, etc. - and should think how to use ammo efficiently.

So I think berserk-run can make another fun in Iji speedrun.