Spinpound

Spinpounds (otherwise known as 'buffered spin jump groundpounds' or 'bumps') are a movement technique used in Super Mario Odyssey speedrunning. Spinpounds are groundpounds that have a shorter animation, meaning that they can be executed more swiftly in order to reach maximum rolling speed.

Reproduction Steps

To perform a spinpound

• Spin the left anologue stick so that it completes to full rotations;
• Press the jump button (A/B);
• Groundpound (ZL/ZR)
• Press the capthrow button (X/Y) or shake.

A spinpound is the same speed if the player shakes their controller when executing it. Spinpounds differ in speed depending on how fast they are executed. A perfect spinpound can be performed in only 4 frames.

Usage

Spinpounds have all the same uses as regular groundpounds - that is rolling, jumping, killing enemies and breaking boxes, amongst other things. This section will focus on places where spinpounds are most optimal and most frequently used.

In most speedruns, spinpounds are most commonly used to get ontop of low standing walls or to scale a wall. This is because spinpounds are faster than a regular groundpound and give more height than a backflip.

Aside from movement, most ledge clip setups feature spinpounds at some points, though the setups are usually very unreliable.

Silent spinpounds

A silent spinpound is when a spinpound does not generate the usual sound accompanied by a spinpound. Many players will encounter a silent spinpound at some point whilst playing the game and may be confused as to what caused it. According to current knowledge, a silent spinpound occurs when the player releases zl/zr just before the spinpound is completed.

References

https://www.youtube.com/watch?v=he0T9Oan808 - video detailing spinpounds

https://www.youtube.com/watch?v=F7HZT2lmL04&t - video detailing general movement techniques including spinpounds (referred to as bumps in the video)