Ledge grab and climb up. Jump or fall at a ledge while holding forward: V1 catches it and pulls up. Let go of forward to hang, Jump to kick off the wall, Slide to drop.
Vault over waist-high cover without losing speed.
Wall-run along walls for over a second; Jump to kick off (uses one of V1's three wall-jumps), dash or slam to break off.
A machete waits just ahead of you at the start of every campaign level and in the Sandbox. It rides on your punch, so parries still work, and enemy hits deal double damage.
It wears out. Each hit costs durability (the Knuckleblaster twice as much); at zero it breaks.
Scrap and repairs. Kills drop scrap that flies to you. Press V to repair for 10 scrap; each repair restores a little less (100%, 85%, 70%... down to 25%).
Single player. Only ULTRAKILL is needed: inspired by Dying Light: The Beast, but nothing from it is used. The game's own sounds and font come from your copy of ULTRAKILL. The repair key can be changed in BepInEx/config/grey.parkourmachete.cfg.
Credits: idea by GreyisCap'nCook. Made by Dero with Claude (Anthropic). ULTRAKILL by Hakita / New Blood Interactive. Dying Light: The Beast by Techland (inspiration). BepInEx and HarmonyX (MIT), installed by Melty. MIT license; open for remixes.