Boosted Uppercut

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Performing a boosted uppercut in Sentinel Beach

A boosted uppercut or "boosted" is a movement technique that gives Jak much more horizontal momentum than the conventional intended movement techniques, making it possible to cross larger gaps. The technique has a few methods by which it can be performed, all of which yield increased horizontal momentum:

  • by slowly walking off of a ledge and pressing square, cross, circle in succession before Jak begins his falling animation;
  • by running along the edge of a ledge, and then pressing square, cross, circle in succession (often called a sideways boosted);
  • by standing on the very edge of a ledge so that Jak's feet point downwards, and then pressing square, cross, circle in succession;
  • In Jak and Daxter: The Precursor Legacy only, by zoom walking off of a ledge, then cancelling the goggles with triangle and quickly pressing square, cross, circle in succession.

Boosted uppercuts can be performed in Jak and Daxter: The Precursor Legacy, Jak II: Renegade, and Jak 3.

Tutorial Video


The Backwards Boosted Uppercut was the first variant of the Boosted Uppercut to be discovered. Backwards Boosted Uppercuts regularly occur in casual play which makes it impossible to determine when it was first performed. A speedrunner named Meggachilly discovered the Boosted Uppercut that is still used in Jak and Daxter speedruns today.

Movement Techniques in the Jak and Daxter series
Jak and Daxter: The Precursor Legacy Boosted UppercutEco BoostExtended UppercutFall Damage Animation CancelFast SwimGround Cancel JumpIce MomentumInfinite BounceJump Pad One FrameJump Pad Hitbox ExtensionLava WalkProxy JumpQuad JumpRocket UppercutWater HopsWater RolljumpWet FeetZoom Walk
Jak II: Renegade AbahbounceBoosted UppercutExtended Uppercut (dark jak) • Fast SwimJetboard (extended frontflip, hover) • Proxy JumpRocket UppercutVehicle ClipVehicle FlingVehicle JumpVehicle SubstitutionWater Rolljump
Jak 3 AbahbounceBoosted UppercutConcussor Spin JumpExtended Uppercut (dark jak) • Fast SwimGlitch High JumpInfinite Flight GlitchJetboard (extended frontflip, hover) • Peace Maker LaunchProxy JumpRocket UppercutSpeed ZoomerVehicle ClipVehicle JumpVehicle SubstitutionWater RolljumpWave Concussor Infinite Jumps
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