ultrakill p-2 brutal jackhammer only no arms

the last challenge with the attractor and overheat sawblade with the jumpstart nailgun (   • ultrakill p-2 brutal 3 weapons only  ) was fun to do so i thought i'd do another one, but this time with the jackhammer / alt shotgun. this is the second attempt of this challenge. the first one took nearly an hour before i just gave up after dying to sisyphus for 40 minutes.

0:00 - 0:18 : intro
0:18 - 1:09 : 4 cerbs room
1:09 - 1:48 : bridge
1:48 - 1:57 : tiny hallway
1:57 - 2:32 : unsuccessful plaza attempt
2:32 - 3:45 : successful plaza attempt
3:45 - 4:40 : getting the skull
4:40 - 5:07 : bridge but again
5:07 - 5:38 : putting the skull down
5:38 - 6:41 : unsuccessful blood tunnel attempts
6:41 - 7:03 : blood tunnels part 1
7:03 - 7:23 : blood tunnels part 2
7:23 - 9:39 : unsuccessful last arena attempts
9:39 - 12:03 : successful last arena attempts
12:03 - 12:31 : sanctum depths
12:31 - 13:18 : flesh panopticon
13:18 - 13:49 : unsuccessful sisyphus prime attempts
13:49 - 15:59 : successful sisyphus prime attempt
15:59 - 16:13 : end

the jackhammer is surprisingly easy once you get used to it (which i wasnt the first time i tried this challenge). using dash jumps or slams to generate speed instead of the whiplash (no arms, remember?) is an interesting challenge.