Buy ULTRAKILL on Steam ($25). Then, use Parsec or Steam Link on your phone or browser. This lets you stream the real hot, online, ranked ULTRAKILL from your home PC to your school computer. No firewall can block a remote desktop session.
: Many users look for "unblocked" versions to play in restricted environments like schools. While there are unofficial "off-brand" versions hosted on sites like Construct 3
: The parry attack is considered extremely powerful, even capable of defeating bosses like Swordsmachine with just well-timed melee hits. Movement Tech : For maximum speed, perform a Ground Slide
Make sure the "hot" version is actually current. The latest major update (as of this writing) includes the "Violence" layer. If the unblocked version you are playing doesn't have the "Whiplash" grapple arm, it is an old build. Keep searching until you find the fresh version.