According to the Genji Gamepedia page, Reflect's ability is:
With lightning-quick swipes of his sword, Genji reflects an oncoming
projectile and sends it rebounding towards his opponent.
It's not exactly clear what this means. Does this mean that reflect can only reflect non-hitscan projectiles? Or can he also deflect hitscan projectiles such as S76's Pulse Rifle bullets or Widowmaker's shots? Can he also reflect Ultimates such as Roadhog's Whole Hog or Hanzo's Dragonstrike?
Best Answer
The list of projectiles Genji can reflect is nearly identical to the list of projectiles D.Va's Defense Matrix can block, but with the added bonus of being able to negate damage from Melee and physical attacks, such as Winston's Primal Rage or Reinhardt's Rocket Hammer.
Genji can deflect
Genji can nullify damage from
Genji cannot deflect
Sources
See Also
Notes
1Hanzo's ultimate is fired as a reflectable arrow before transforming into unreflectable dragons.
2Only reflectable in mid air before hitting the ground.
3Junkrat still triggers mine detonation.
4Biotic Field is a projectile with no traveling speed.
5Primal Rage knockback still applies.