Which kind of hack engine to you use to hack gear roblox

There is none. They protect Roblox so you can't hack it. And there is no actual such thing as hack engine. It doesn't work, they just hack you back.
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btw the correction is you CAN hack, its just almost IMPOSSIBLE to hack on roblox.
you can delete people with the following gears to trap them:
portable justice
freeze ray
freeze ray 2012
and any other trapping items.
thats the only hack i know.
probably a glitch... don't know which...

my account names on roblox:
777catgirl [active,1st account]
ReimuHakurei2 [active,3rd account,modeler]
MarisaKirisime [forgot the password,inactive because of that,2nd account]