Both of these skips rely on jumping repeatedly to climb up walls. The second skip also shows that you can simply walk through the closed gate, provided you can get to it. This was performed on emulator. When I have a cart, I hope to verify that these skips work on console as well.
Armorines: Project S.W.A.R.M. Statistics For PD4FR
At present, PD4FR has 103 views spread across 14 videos for Armorines: Project S.W.A.R.M., with approximately 2 hours of Armorines: Project S.W.A.R.M. video on his channel. This makes up 1.22% of the content that PD4FR has uploaded to YouTube.