Gonzo Goes Mental features: Fire Frames & free spins

Gonzo Goes Mental stacks several mechanics on top of each other: Avalanche reels with a climbing multiplier, colossal symbols that push the grid taller, Fire Frames that split symbols into extra ways, and three tiers of free spins. Below is how each piece works according to NetEnt’s game sheet — and why the British version of the slot ships without a bonus buy.

Avalanche reels and the win multiplier

The reels in Gonzo Goes Mental don’t spin so much as collapse. Per NetEnt, every symbol that forms part of a win explodes, and fresh stones tumble down to fill the gaps — so a single paid spin can chain several wins in a row. Each Avalanche moves a multiplier one step up the ladder. When a fall produces nothing, the sequence is over and the multiplier drops back to ×1 for the next spin.

Base game: +1 per Avalanche, capped at ×5

×1start
×21st Avalanche
×32nd
×43rd
×5cap

Free Spins: +2 per Avalanche, capped at ×666

×1start
×31st Avalanche
×52nd
×73rd
×94th
×666cap

The base-game ladder echoes Gonzo’s Quest. The free-spin ladder is where this slot earns its name — and some Special Features reach ×666 far faster than step-by-step growth.

Colossal symbols and expanding reels

Gonzo Goes Mental reels grown tall inside the jungle temple — Reels grown to their full height with the ×5 base multiplier on top

Big stones push the grid upwards

Every spin starts on a 5×4 grid. High-paying symbols can land as colossal 2×2, 3×3 or 4×4 blocks, counting as 4, 9 or 16 symbols. If a colossal block lands only partly visible at the top, NetEnt’s sheet says it shoves the whole grid up to reveal it — as far as 8 rows. Bonus symbols, Wilds, Calamity Wilds and low symbols never arrive colossal.

In the base game the grid shrinks back to 4 rows on every new spin. In Free Spins any row you gain is kept until the round ends.

1,0244 rows
3,1255 rows
7,7766 rows
16,8077 rows
32,7688 rows
1,048,5768 rows + Fire Frames

Five reels at 8 rows give 32,768 ways. The jump to 1,048,576 only happens once Fire Frames split the symbols sitting on that full-height grid.

Fire Frames

Whenever a win includes a Wild or a Calamity Wild, a Wild Frame is left burning on that position. The next regular symbol to drop into a frame splits in two. A colossal symbol splits much further — into 8 (2×2), 18 (3×3) or 32 (4×4) symbols — which is how the way count climbs past the 32,768 of a full grid.

Frames are not multipliers; they only add ways. A Bonus symbol that lands in a frame counts as two Bonus symbols, which helps fill the counter. Frames disappear when the round finishes, unless a Special Feature locks them during Free Spins.

Wild, Calamity Wild and colossal tiles

Wild

Substitutes and converts

Stands in for every symbol except Bonus and Calamity Wild. It can also turn colossal symbols into Wilds, so a big block becomes a big substitute.

Glowing red crystal artwork from Gonzo Goes Mental — Calamity artwork

Calamity Wild

Scatters 2 to 5 Wilds

When it is part of a win, it throws 2 to 5 regular Wilds onto random spots before the next Avalanche — and each of those can leave a Fire Frame behind.

Red stone monster-eye tile from Gonzo Goes Mental — A high-paying symbol

Colossal symbols

2×2, 3×3, 4×4

Only the high-paying stones come in colossal sizes. They count as 4, 9 or 16 symbols and are what drives the grid up towards 8 rows.

Gonzo Goes Mental free spins: Delusional, Mad and Mental

A counter under the reels tracks Bonus symbols. At the end of an Avalanche each Bonus symbol explodes and clears its neighbours — though not Wilds, Calamity Wilds, Fire Frames or other Bonus symbols. Collect enough and the round begins in a torch-lit dungeon cell.

Gonzo in a straitjacket with arms crossed and a wide grin — Gonzo ready for Free Spins

Three triggers, three levels

3 Bonus symbols — 5 Delusional Spins
6 Bonus symbols — 8 Mad Spins
9 Bonus symbols — 11 Mental Spins

The round starts at whichever level you reached.

Gonzo Goes Mental Free Spins in the dungeon cell with the Bonus counter — The Bonus counter during Free Spins

Upgrades during the round

Bonus symbols keep counting once Free Spins are underway. Fill the next mark and the round climbs a level — Delusional to Mad, Mad to Mental — with 3 extra spins added on each upgrade. Any spins you had left carry over, and expanded rows stay in place until the last spin.

18+ · UKGC-licensed casinos only · T&Cs apply · BeGambleAware.org

Special Features in Free Spins

Every 3 Bonus symbols collected during Free Spins unlock one Special Feature slot. NetEnt warns that a slot can land empty, so not every unlock pays off. The seven possible results are listed below.

Glowing broken golden wheel artwork from Gonzo Goes Mental — The Broken Wheel

Special Feature	What it does
Frame Burst	Adds 3–5 Fire Frames to the reels
Frame Lock	Locks 2 frames in place until the round ends
Calamity Wild	Drops one Calamity Wild on a random spot
Locked Calamity Wild	A Calamity Wild that stays put for the rest of the round
Broken Wheel	Sets the multiplier to ×5, ×10, ×15, ×25, ×50, ×100, ×200, ×350 or ×666
Locked Wheel	The multiplier stops resetting between spins
Enhanced Wheel	Multiplier steps grow by +1 after each Avalanche

Bonus buy: Elevate is switched off in Great Britain

NetEnt built Gonzo Goes Mental with a five-option bonus buy menu called Elevate. UK casinos run the slot without any of it — Bonus Hunt included. British players reach Free Spins one way only: by landing Bonus symbols on the reels.

Not in GB

Bonus Hunt

An ante-style mode that raises the chance of each free-spin level.

Not in GB

Calamity Explosion

Guarantees at least one Calamity Wild in a base-game win.

Not in GB

Delusional Spins

A direct buy into the first free-spin level.

Not in GB

Mad Spins

A direct buy into the middle level.

Not in GB

Mental Spins

A direct buy into the top level.

Why the buys are missing

Under UK Gambling Commission rules, licensed online slots must avoid design features that speed up play or push intensity, and buying straight into a bonus round is exactly that kind of shortcut. Rather than offer a cut-down menu, the GB version simply has no Elevate screen. The free demo build may still display it — remember it won’t be there at a UKGC-licensed casino.

Everything else — including the 15,000× top prize — stays. Stakes and the £5 per-spin limit are on the RTP and max win page.