none of my ideas worked :[
But I got a 1:35! Took quite alot of grinding to get as I wasted alot of time trying to get pimpillo bombs into the meta. Unfortunately they're way too inconsistent with the damage, (sometimes dealing 35 even on direct hit, and sometimes 70 like it should on direct hit) and the third arena is way too big for the pimpillo bombs to be more effective than the saws. Though I don't think I experimented enough, maybe it's still possible to use the bombs, I'm not sure though.
No new strats, but played on the newer patch instead. I think the difference is that the newer patch allows for more precise movement, so that alone got me just a tiny bit ahead.