Orbivore

Most recent update: Updated boss patters and some behaviors makes bosses more entertaining. And fixed minor bug with settings in mobile mode.

Previous update: added neon (saga 2)

This is a "bullet frenzy" 2d top down shooter game that has levels, evolutions, abilities, linear AND exponential difficulty scaling, bosses, dynamic retro style background music, and MUCH more.
The objective for the time being is completing all the stages, each one is more difficult and introduces new challenges and enemies.

## ORBIVORE — Feature List

A fast, stylish browser arena shooter. No install. No download. Just you and the orbs.

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### Core Gameplay

- Top-down arena shooter — WASD/arrows + mouse aim

- Rank up by collecting XP orbs dropped by enemies

- Survive waves of increasingly aggressive enemies

- Giant boss fights every 10 ranks

- Score tracking with local persistence

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### Two Full Sagas — 12 Stages Total

Saga 1 — Classic

6 stages of escalating chaos with 4 enemy types across 6 sizes

Saga 2 — Neon

Unlocks after completing Saga 1. Entirely new enemy roster, neon circuit board arena, and a dedicated soundtrack.

Each saga has its own stage select, progression tracking, and completion records.

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### Enemy Roster

Saga 1

- Normal — 6 sizes, rushes the player

- Dasher — periodic high-speed charge

- Dodger — sidesteps incoming projectiles

- Tank — armored, ignores knockback, very high HP

Saga 2 (Neon)

- Neon Normal — glowing rush attacker

- Neon Sniper — keeps distance, fires precision shots every 3 seconds

- Neon Brawler — 15% chance to spawn enraged with doubled HP and speed

- Teleporter — turns invisible every 5 seconds, teleports near you, bursts on arrival

All enemies come in sizes 1–6 with distinct HP, speed, and visual scale.

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### 9 Giant Bosses with Multi-Phase Fights

Saga 1

- Giant — ring bursts + aimed shots; enrages at 40% HP; triple ring barrage at 25%

- Agile Giant — dashes and dodges projectiles; triple dash at 50% HP

- Tank Giant — massive HP, fire ring burst at 50% and 25% HP

- Summoner Giant — spawns size-5 tank minions; doubles summon rate at 50% HP

Saga 2 (Neon)

- Neon Giant — rush attacker with ring bursts at low HP

- Neon Sniper Titan — strafes at range; RAPID FIRE mode at 50%; triple OVERLOAD rings at 25%

- Neon Brawler King — triple charge at 50%; fury rings at 25%

- Phantom — teleports with shockwave every 4 seconds; 3x rapid teleport burst at 50%

- Gatling Titan — keeps distance, alternating dual-gun bursts

Boss HP, attack speed, and contact damage all scale with your rank.

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### Run Progression

21 Upgrades — reset each run, max level 6 each. Choose from randomized selections every rank-up.

Categories include: fire rate, bullet count, damage, speed, HP, regen, orbiting shields, chain lightning, mines, shockwave, dodge chance, and more.

20 Legacy Powers — permanent across runs. Earn one per first stage clear from a random selection of 5. Includes:

- Passive bonuses (damage, speed, HP)

- Active effects (lightning strike, shockwave on kill, barrier, thorns, time warp)

- Visual/playstyle modifiers (orbit shells, twin shot, rear gun, burn damage)

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### Endless Mode

Infinite survival with all Saga 1 enemy types, randomized boss schedule, and all difficulty scaling active.

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### Difficulty Scaling

- Enemy speed: up to 1.40x (caps at rank 35)

- Spawn rate: compound scaling per 5 ranks

- Enemy HP: up to 2x at rank 45+

- Boss HP: 2x at rank 20, 3.5x at rank 50

- Boss attack speed doubles at rank 20

- Max enemies on screen scales with rank

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### Audio

- Procedural SFX — every sound effect synthesized live via Web Audio API, no audio files

- Saga 1 music — 5 shuffled 8-bit gameplay tracks, dedicated boss music, menu theme

- Saga 2 music — 5 neon/synthwave gameplay tracks, high-energy neon boss track, atmospheric neon menu theme

- Dynamic menu music — menu theme automatically shifts to the neon soundtrack once Saga 2 is unlocked

- Music muffles during upgrade and pause screens

- Master volume + separate music volume controls

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### Visuals

- Saga 1 arena — animated pulse rings, film grain overlay, ambient particles, vignette

- Saga 2 arena — neon circuit board (procedurally generated per session), drifting glow blobs, neon pulse rings

- Neon enemy rendering — dark hollow core + glowing tube ring with bloom; type-specific markings (crosshair, enrage spikes, teleport flicker)

- Screen shake, particle explosions, death bursts, dash trails, floating text

- XP orbs with physics — burst outward, pulled toward player, clump when idle

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### Settings & Accessibility

- Master volume + music volume sliders

- 7 individual SFX toggles (shoot, hit, rank up, boss, damage, death, upgrade)

- Performance Mode — disables shadowBlur, trails, noise overlay, ambient particles

- Screen Shake toggle

- All settings persist via localStorage

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### Mobile Support

- Full dual-joystick touch controls (move + aim)

- Auto-scaled viewport with camera follow

- Responsive UI for upgrade and legacy selection screens

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### Other

- Enemy Index — in-game encyclopedia with stats, abilities, and attack patterns for all 8 enemy types and all 9 bosses

- No install — single HTML file, runs entirely in browser

- No internet required after first load