Little by little, Epic Games is poking holes in the “just build” mantra held by most Fortnite players. As part of today’s update, for instance, the edge of the storm circle will damage buildings, something that is bound to intensify late-game skirmishes that rely on player-created cover. More broadly, the recent introduction of a grappling hook-like weapon promises to upend everything you know about mobility in Fortnite.

The grappler is a plunger that you can shoot at nearly any surface. When it makes contact, it will propel you toward your target. The grappler comes in stacks of 15, though if you shoot it and miss, it won’t deplete your ammo. Messing around with it a bit this morning, I noticed that it will usually catapult you a little higher than wherever you aim. Coupled with the constant risk of fall damage, learning how to use the grappler is tricky at first.

New Fortnite "Grappler" item in action. Stacks of 15, can shoot 6 stories up, and you'll always land slightly above when you shoot it. Fall damage is still a thing and you will probably die a lot using it. pic.twitter.com/IntmlD0x7B — Hutch (@hutchinson) September 6, 2018

Judging from the clips that are circulating hours after its release, though, the small learning curve seems worth it. Players are zipping around the map at high speeds like they’re Spider-Man. The grappler is a blast to use and just as fun to watch.

Fortnite’s signature mechanic is building cover, so many players like to hide behind increasingly elaborate walls and buildings. The grappler makes it hard to feel safe, though: if an enemy has it, they can easily launch themselves behind whatever you’ve built and at top-speeds, too. Footage circulating right now tends to show off quick kills landing on unsuspecting enemies who don’t know how to deal with the incredible mobility that the grappler affords. Behold:

This is how you McSauce kids with the Grappler pic.twitter.com/2Tg3fAEF04 — Chris (@vx_chris) September 6, 2018

The Grappler is sick. Definitely gonna be a top tier item in pubs and competitive. 15 uses is NUTS... https://t.co/1xejXD1a3E pic.twitter.com/ot1i94H2if — CLG Marksman (@Marksman) September 6, 2018

the grappler is nutty pic.twitter.com/M4yphjiyR8 — vanora (@vanoragod) September 6, 2018

Of course, people are finding creative ways to use the grappler that don’t involve murder, too.