The
Jury-Rigged Boomstick from Deep Rock Galactic. It's an oversized sawed off double-barrel shotgun that handles like a handheld cannon, sounds beefy as hell and deals even
beefier damage. It's capable of one-shotting most player-sized enemies whilst two-shotting the rest, and chunks the health of the bigger enemies.
And that's just on its own and without all of the upgrades and modifications (called overclocks) you can apply to the thing.
With the right upgrades, you can go from one-shotting enemies to
deleting entire groups of them and setting any improbable survivors on fire. Spec it another way and you can nuke the health of the larger targets. Not a fan of close quarters? There's a overclock you can unlock that compresses the wide, rectangular spread into a tight circle; greatly increasing it's effective range.
And then there's my personal favorite overclock "Special powder", which allows you to launch yourself great distances with a simple jump and the pull of a trigger.
Turning alien insects into thin, green paste has never been so fun.