The Last Stand · prototype

How to play

5×3 reels, 243 ways, cascades. A win is 3, 4 or 5 matching symbols (or Wilds) on adjacent reels from the leftmost reel.
Winning symbols explode and new ones drop in. Every cascade doubles the win multiplier: ×1, ×2, ×4 … up to ×256 (shown on top of the reels). It applies to the symbol wins and zombie kills of that cascade — in the boss fight too.
Scatter (at most one per reel): 3 / 4 / 5 scatters give 5 / 10 / 15 free spins. They are played in the base game and carry on into the boss fight.
A weapon win flies to the hero, who fires it at the zombies right away. Rounds = weapon base × length (3 → ×1, 4 → ×2, 5 → ×3) + 1 per Wild in the win.
After all cascades the zombies take one step toward the electric fence. A zombie that reaches the fence burns — no payout for it.
Zombies keep coming up the road. Clear the road of zombies and the boss walks in — right away, so the rest of the rounds and cascades of that spin hit it. The horde keeps coming behind the boss. Every new zombie gets a random level, L1…L5 equally often.
Progress is saved for every bet level separately and never expires.
Maximum win: 5000× bet per spin — killing the boss always pays it.

Symbol	What it does
♦ ♣ ♥ ♠	Low symbols (aces), coin wins only
Pistol	7 rounds × 1 damage at the nearest zombie
Shotgun	4 blasts; each hits the target and the 3 cells behind it for 1 damage
Rifle	11 rounds × 1 damage, fast burst
Sniper	2 shots × 3 damage at the highest-level monster on the field; breaks shields at once; the round goes through and also hits the next monster behind it
Minigun	18 rounds × 1 damage
RPG	2 rockets: 4 damage to the target, 2 to the 3×3 area
Wild	Ammo Box — substitutes all paying symbols, +1 round to the weapon win
Double Ammo	+1 point on the skill panel (max 3): doubles the rounds of one weapon win
Explosive	+1 point (max 3): every round of one weapon win kills in one hit (not the boss)
Flash Grenade	Goes off at once — zombies don't move this turn. Extra grenades wait on the panel (max 3) and go off at the start of the next spins.

Skill points are spent one per weapon win, strongest weapon first.

Level	HP	Movement / trait
L1	5	1 cell forward
L2	5	1 cell diagonally
L3	6	2 cells forward
L4	7	1 cell forward; splits into two L1 when killed
L5	8 + 3 shield	1 cell forward; the shield is extra HP
Chicken	1	Kamikaze: 3 random steps a turn, dynamite blast on death (3×3), charges the airstrike; stays on the road until it is shot
Boss	560	1 row every 2 spins; throws 2–4 zombies into the cells next to it every 2–3 spins; 5 HP segments; killing it pays the max win

Some zombies carry a multiplier badge (×2 … ×500) that multiplies their own reward.
Zombies shamble: each one takes its step with a 70% chance every turn. Every turn a random 1–5 new ones walk in from the fog into the free cells of the top row.

Airstrike: 5 killed chickens call a plane that bombs the nearest row with zombies and the two rows behind it.
Boss fight: it comes every time the road is cleared, about once in 60 spins. It is played with normal spins (plus any free spins left). Killing the boss pays the max win; if it reaches the fence, it pays once by the segments broken: 1 → 5×, 2 → 14×, 3 → 32×, 4 → 75× bet.