Unfair Undyne v0.99

3.3(32)

Bad Time Simulator Undyne | Unfair Undyne v0.99 Ultimate Battle

Released:September 6, 2025

Alternate universe Undertale

🎮 Controls: Arrow keys to select direction, Z to interact

⏱️ Timer Feature: Track how long you survive without dying!

👨‍💻 Developer: Joe Zeng

Unfair Undyne v0.99 - Undertale fish warrior battle game

Experience the ultimate Bad Time Simulator Undyne battle in this pixel-perfect Undertale fan game! Face the legendary fish warrior with authentic spear combat, survive her relentless magic attacks, and test your endurance with the built-in survival timer. Choose your path: pet the vegetables, fight the true hero, or atone for your sins in this intense battle experience.

Three Difficulty Levels

This Bad Time Simulator Undyne recreation features three distinct difficulty levels that progressively increase the challenge. Each level offers a different intensity of Undyne's attacks, from beginner-friendly to extreme challenge, allowing players to find their perfect difficulty match.

Real-Time Survival Tracking

The built-in timer system adds a competitive survival element:

•Track your survival time in real-time during battle
•Challenge yourself to beat previous records
•Timer resets only when you die, encouraging perfect runs

This feature transforms the battle into an endurance test, rewarding players who master the attack patterns.

Progressive Difficulty System

Choose your challenge level with three escalating difficulty options:

•Level 1: Beginner difficulty with slower attack patterns
•Level 10: Intermediate challenge with moderate speed and complexity
•Level 99: Extreme difficulty with maximum attack intensity

Each level increases the speed, complexity, and intensity of Undyne's attacks, providing a scalable challenge for all skill levels.

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Test Your Survival Skills!

Start Survival Challenge!

Unfair Undyne v0.99

Bad Time Simulator Undyne | Unfair Undyne v0.99 Ultimate Battle

Game Overview

Three Difficulty Levels

Test Your Survival Skills!