SHORT ANSWER
Fist of Destruction does not have a traditional free spins retrigger — its bonus escalates via Victory Points rather than adding spins through additional scatter landings. Dork Unit uses a more conventional free spins structure with retrigger potential. The two games produce bonus variance in fundamentally different ways.

How Fist of Destruction's bonus works without retriggering

Fist of Destruction's Throwdown! and Ultimate Throwdown! bonuses do not extend through scatter retriggering. Instead, they have a fixed spin allocation that escalates in quality through the Victory Point system. More VPs means higher Epic Spin levels — better Fist pre-loading — rather than more spins. The bonus ends when the allocated spins run out, regardless of what has triggered during it.

This design means the bonus length is predictable but its quality is not. You know how many spins you will get; you do not know whether those spins will reach Level 4 Epic state or stay at Level 1. The outcome variance comes from VP accumulation rate, not from bonus extension.

How Dork Unit's retrigger mechanic differs

Dork Unit by Hacksaw Gaming uses a more conventional bonus structure where additional scatters landing during the free spins round can extend the bonus. Retriggering adds spins to the remaining count, potentially extending a productive run significantly if scatters cooperate.

This creates different volatility characteristics: Dork Unit bonuses can range from very short (trigger with no retriggers, spins expire quickly) to very long (multiple retriggering events producing extended bonus runs). The outcome variance is generated through bonus length uncertainty rather than through escalating spin quality.

MECHANICFIST OF DESTRUCTIONDORK UNIT
Bonus lengthFixed spin countVariable — retrigger extends
Bonus quality varianceVP escalation levelRetrigger frequency
Bonus predictabilityLength known, quality unknownNeither length nor quality known
Average bonus return20x to 100x+ (varies by VP level)15x to 200x+ (varies by retriggering)

Which system produces more consistent bonus returns

Neither system produces consistently predictable bonus returns — both have wide outcome distributions. The source of variance differs: Fist of Destruction variance comes from VP accumulation and multiplier values; Dork Unit variance comes from retrigger frequency and bonus length.

Players who have experienced a short Dork Unit bonus that expired without retriggering — 8 to 12 spins for minimal return — find the experience frustrating. Players who experience a Fist of Destruction bonus stuck at Level 1 to 2 due to poor VP accumulation have a similarly disappointing result. Both scenarios produce well below the bonus average.

The philosophical difference: if you prefer the bonus to have a chance of extending dramatically (retrigger mechanic), Dork Unit is more exciting in that dimension. If you prefer escalating quality within a defined window (VP mechanic), Fist of Destruction's structure is more coherent.

For consistent bonus exposure: Fist of Destruction's buy feature at 50x to 250x gives guaranteed access to known bonus structures. Dork Unit's equivalent buy, if available, does the same. In both cases, buying bypasses the trigger probability uncertainty — the remaining uncertainty in Fist of Destruction is VP escalation, in Dork Unit it is retrigger frequency.

BOTTOM LINE
Fist of Destruction uses VP escalation rather than retriggering to create bonus variance. Dork Unit uses retrigger extension. Neither is objectively superior — they produce variance from different sources. Fist of Destruction's bonus is predictable in length but not in quality; Dork Unit's is unpredictable in both. The choice depends on which uncertainty source you prefer to contend with.