Shoot-em-Up — "Navinha"

A 2D top-down shoot 'em up built in Unity, with three enemy archetypes, a drop-based power-up system and a three-phase final boss.

First project of the Oficina Indie course (André Young), built from the course material and open-ended direction rather than a step-by-step tutorial.

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Gameplay

The run is structured in three stages:

Stage	Goal
1	Reach 400 points by destroying enemies
2	Survive 60 seconds
3	Defeat the final boss

The mechanics are deliberately compact — the difficulty curve is what carries the experience.

Enemies

Three archetypes, each demanding a different response from the player:

• Melee — no weapon, attacks by collision. Moves in a zig-zag pattern that makes it hard to hit, and deals heavy damage on contact.
• Shooter — the tankiest of the three. Fires a double laser, forcing the player to shoot and reposition quickly.
• Multishooter — four guns at 90° firing simultaneously, on a hull that rotates 360°. Ignoring it usually costs a life.

Power-ups

Enemies have a chance to drop power-ups and health on death: multishot, minigun, bomb, shield and move speed.

Final boss

Three phases, each activating a different weapon set:

1. Simple shot — two guns firing alternately
2. Minigun — two fast-firing guns with a randomized pattern
3. Laser — four guns driving four vertical beams

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Stack

Engine	Unity 6000.0.48f1
Language	C#
Rendering	Universal Render Pipeline (URP)
Input	Unity Input System
UI	TextMesh Pro

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Architecture

EntityStats is the core of the design: a single shared component holding HP, speed, attack damage, attack speed, point value and shield state. Player, enemies and boss all reuse it, so damage, death and hit feedback (red-flash coroutine) are implemented once instead of duplicated per entity type.

Assets/Script/
├── EntityStats.cs        # Shared stats/damage component (player, enemies, boss)
├── SpawnManager.cs       # Enemy spawn logic and pacing
├── SimpleEnemy.cs        # Behaviour for the three enemy archetypes
├── FinalBossScript.cs    # Boss phase state machine
├── PowerUp.cs            # Drops and their effects
├── InventoryManager.cs   # Active power-up tracking
├── OptionsManager.cs     # Settings
├── PlayerScript.cs       # Player movement and firing
└── Misc/
    ├── LazerGun.cs           ├── Projectile_Player.cs
    ├── MiniGun_boss.cs       ├── Projectile_boss.cs
    ├── Projectile_Enemy.cs   ├── StartButton.cs
    └── explosion.cs

Scenes: StartScene.unity (menu) → SampleScene.unity (gameplay).

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Running locally

git clone https://github.com/EnzoGiacomini/Shoot-em-Up.git

Open the folder through Unity Hub with editor version 6000.0.48f1, then load Assets/Scenes/StartScene.unity and press Play.

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Credits

Course direction by André Young (Oficina Indie). Visual effects from the JMO Assets package.