Spielo/IGT • Brain Meter Banking
Look at the pink/red BRAIN METER at the top of screen. Bonus triggers at 500 points. Higher meter = closer to bonus!
200+ points = Standard play threshold
150+ points = Acceptable in competitive areas
Meter can DECREASE! No brain = -12 points
Each bet level has separate meter
The brain meter fills as you collect brain symbols. At 500 points, bonus triggers!
Brain symbol on reels 1, 3, or 5 = +54 points
No brain on a spin = -12 points (meter decreases!)
Meter is persistent per bet level — check all 5 bet sizes!
This game helped launch the modern AP slot era in 2016.
Example: Finding a playable meter at 280 points
☝️ At 280 points, you're past the 200 threshold — PLAY!
| Meter Points | Action |
|---|---|
| 0-100 | SKIP — too far from bonus |
| 100-150 | Borderline — only if desperate |
| 150-200 | PLAY in competitive areas ✓ |
| 200-300 | STANDARD PLAY ✓ |
| 300-400 | GOOD PLAY ✓✓ |
| 400-499 | EXCELLENT — sit down! ✓✓✓ |
Brain lands (reels 1, 3, 5): +54 points each
No brain on spin: -12 points
Bonus triggers at: 500 points exactly
Net gain per brain spin: +54 - 12 = +42
⚠️ UNIQUE RISK: Unlike most AP games, the meter can go DOWN! If you hit a bad streak with no brains, you may need to abandon the machine before bonus.
5×4 reel set with 40 lines
Bet increments: 80¢ steps
5 bet levels — each has separate brain meter!
$1.60 and $3.20 bets: Increased bonus trigger chance
Based on the popular 2009 video game
🐪 Camel Zombie: Picking bonus — reveal suns/cones
🛡️ Defend Yourself: Up to 20 spins, kill zombies for credits
🎰 Free Games: Standard free spins bonus
💀 Zombie Uprising: BEST bonus! Plants vs zombies battle
💡 Zombie Uprising is the rarest but highest-paying bonus. Clear all 4 lanes for maximum payout!
Plants accumulate on left side (up to 4)
Plant food accumulates separately (up to 4)
Both enhance the Zombie Uprising bonus
These accumulators are also persistent per bet level
⚠️ Check not just the brain meter but also plant/plant food status for extra value!
METER DECREASES — can lose your advantage!
Very popular — Vegas locals stake out "turfs"
Hard to find 400+ meters in busy casinos
May need to abandon if meter drops too low
Smart locals don't take kindly to tourists on "their" machines
Check ALL 5 bet levels — separate meters!
Often paired with Aladdin's Fortune 3D
Found in many Vegas casinos including airports
Walk multiple casinos — locals clean out meters quickly
Best finds: Late night when competition sleeps
Released 2016 — launched modern AP slot era
Along with Aladdin's Fortune, created new generation of slot hustlers
Made by Spielo (now IGT) — major manufacturer
Widely deployed = many opportunities