Falco (SSB4)/Forward tilt
Falco performs a roundhouse kick, which can be angled both up and down. It has decent startup, but somewhat high endlag, and the upwards angled variation has a deceptively smaller hitbox than the others. It can kill at very high percents at the ledge with rage, but more importantly, it is able to lock opponents at lower percentages. Forward tilt is one of Falco's most used locking tools, as he has very few other moves to use for locks. Otherwise, the move isn't used often in competitive play.
All three angles have the exact same properties.