Zack Zero - Rock Lock, Mid-air Rock Punch @DukeSetz
Zack Zero - Rock Lock, Mid-air Rock Punch  @DukeSetz
Uploaded July 2013 | Updated September 2026, 2 weeks ago
Switching forms during the normal form's AOE attack lets you float above the ground temporarily. Additionally, you switching rapidly to Rock form in mid-air gives you a short window to throw a Rock Punch that doesn't immobilize you.

After jumping and falling relatively close to the ground, you can perform an AOE attack that will slam Zack into the floor. Once the attack is triggered, though, you can change to Ice, Fire, or Rock form to stop the animation and the fall, giving you a little bit of time to move horizontally in the direction you want. The float lasts for the duration of the full AOE attack animation, which is about 1.2 seconds.

The mid-air Rock Punch on the other hand involves jumping into the air -- preferably with the Fire form -- and pressing the attack button a split-second before Zack begins falling. This trick may in fact require frame-perfect timing, but while it's easiest to perform using the Fire form's Surf, it can be done with any other forms as well.


The Rock Lock isn't supremely useful, but it has potential. The easiest option is that you could simply Infinite Jump out of it, and the floating buys you a bit of time to prepare. But it's important to note that the AOE attack doesn't properly slam into the ground if you move over a cliff once it's activated, meaning that it could potentially take you further than a simple double jump could. Lastly, it's decently useful for avoiding Zack's stunned animation from long falls, instantly giving you another avenue to Infinite Jump.

Theoretically the mid-air Rock Punch allows you to deal heavy damage and instantly drop to the ground to move into another attack, defeating bosses even faster. (Of note, you can't use the Rock Punch for a little while after landing.) Unfortunately, I haven't gotten this to actually work on any bosses. Likely, the sad reality of this move is that Zack must be in place and performing the animation to deal damage, and dropping out of it like this simply leaves the particle effects. Regardless, I felt it might be useful to document.


Overall, these are two tricks that likely don't have much consequence on their own, but it's useful knowledge for someone interested in speedrunning the game.
Zack Zero - Rock Lock, Mid-air Rock PunchFloor Assassin [glitch] - Dark Storm VR MissionsGITS: SAC (PS2) - 6-A shortcutAdvent Rising - Race to Save Humanity contest icon locationsHydrophobia - Loading Bay shortcutGITS: SAC PS2 speedrun - 49m47s (easy)Alter Echo - Power: Kess shortcutBleed (PC) - The Racer stratsGITS: SAC (PS2) - Stun unitsAdvent Rising - 5-B Shortcut (speedrun tricks)Hydrophobia - Swimming on land addendumAlter Echo - Citadel: Ascent shortcut
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Zack Zero - Rock Lock, Mid-air Rock Punch

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