Ejay B | [MKWii TAS] SNES Ghost Valley 2 Flap (Supergliding) - 15.766 @EjayB | Uploaded 1 year ago | Updated 1 day ago
Watch in 4K 60fps! -- NOTE: The flap begins on lap 3, not lap 2!

This was probably one of the last tracks I expected to see a non-superhopping speed-building exploit on… Let me break down how this works:

The ramp used to activate this glitch is a specific type of ramp called a slow ramp. They can be found on a few other courses too. When you use these ramps, you'll slow down to a locked speed (50 or 73) until you touch the ground again.

For some strange reason, however, if you manage to go over one of these ramps without getting any airtime, the speed lock will continue, and you can glide around in a strange state until you enter the air again. This part of the strategy has been known for around a decade.

You'll notice by watching recent TAS runs that videos generally have three speed readings displayed: External Velocity, Internal Velocity, and XZ Velocity.

IV is the speed of the vehicle. In most cases, the game will move the vehicle in whatever direction it is facing by this number. This is the number that is adjusted to account for off-road and acceleration. EV is a measure of how much momentum you have. These two velocity values are (roughly) added together to create XYZ velocity which is capped at 120. In this video, XZ velocity is displayed, so the Y component (acceleration due to gravity) is ignored.

Anyway, this got me thinking - what if the speed lock of 50 was only applied to IV? What if there was somehow a way to get 70 EV in this state and reach max speed? It turns out that; in this state, when your bike has very specific rotation and tilt, you can move the joystick back and forth rapidly to build up EV. This can be done optimally by alternating ±2 and 0 inputs, but precision to that level isn't needed to build up speed. This means that this is the first RTA viable useful way to build up XZ to 120 without using shrooms! It's also worth noting that the A button does nothing whilst supergliding, so you don't need to hold that either. Supergliding should additionally be faster for an ultra shortcut flap here.

I'm happy with the flap itself. This track is difficult to TAS due to the horrendous QM faced at every block corner. If you see the XZ velocity hit 124 at certain times, it's just because the edge of the road can force you to move forward upon driving over it. For the final ramp, I found a much faster version of what Marth did in his old flap, and it's also viable for no glitch 3lap runs. Thank you to Citrinitas for lending his Wii Wheel inputs at the final turn and shaving off many milliseconds.

♫ Those Who Stand Against Our Path – Xenoblade Chronicles 2 ♫

Thank you for watching!