Undergarf Bad Monday Simulator

Undergarf Bad Monday Simulator Undergarf Bad Monday Simulator is a casual action sim where you play as Nermal Kitten and team up with familiar allies to battle Monday. Explore a dark new world, master Undertale-style fights, and build bonds.

Undergarf Bad Monday Simulator

Undergarf Bad Monday Simulator is a popular casual simulation game that throws you into a quirky, emotionally driven adventure. You play as Nermal Kitten and team up with familiar characters to take on Monday itself. Through hard-fought trials, you and your companions gradually shape a new, beautiful world—building strong bonds along the way.

Powered by a brand-new graphics engine, the game delivers detailed character modeling and a dark visual style, creating an immersive atmosphere with plenty of excitement from start to finish.

Key Features

• Garfcat × Undertale Fusion: Undergarf: Bad Monday Simulator blends the worlds of Garfcat and Undertale into one crossover experience, where both universes collide in a brand-new setting.
• Fight-Driven, Challenging Gameplay: Take control of Nermal Kitten as you battle Sansfield—a chaotic fusion of Sans and Garfcat. Expect Undertale-style combat and use your skills to push toward victory.
• Escape the “Monday Blues”: This simulator world is built to be free from conflict and, most importantly, free from Mondays. Step into Undergarf to leave your real-world stress and boredom behind and dive into an exciting adventure.



• Made to Be Entertaining: The Undergarf app aims to be fun and accessible—great for passing the time while enjoying a unique gaming experience. Say goodbye to boredom and hello to nonstop entertainment.

Useful Tips

• Refine Your Battle Skills: Keep practicing so you can consistently defeat Sansfield. Test different strategies and attacks until you find what works best against your opponent.
• Search the Whole World: Don’t rush—slow down and explore every corner of Undergarf. Hidden items and surprises may be waiting where you least expect.
• Talk to NPCs: Interact with the game’s NPCs to learn more about the story and the world around you. Some characters may offer useful hints or quests, so it’s worth taking time to check in with them.

Player Notes

• Music praise: “The music for this game is a total banger—stage 1 and 3 battle tracks were made in heaven. Subbed to your channel, love your vids. Also, you need full screen for this platform—bye.”
• Download request (Spanish): “Good fangame, but could you add a way to download it? I ask because it’s on the web, and it requires internet to play. Can you make it downloadable so we can play anytime?”
• Boss pattern advice: “Phase 2 has a pattern for the attack order. Use it to your advantage—attack on every move except the one right before he uses the Sans + Garfield gun attack. If you’re under 45 health at that point, heal.”
• Progress update: “On try 15, I beat it on normal. The boss fight is extremely well-made and feels similar to Undertale. On normal, the game isn’t too hard. The toughest part is the last stage—Sans throwing bones while Garfield shoots at you (still no idea how to dodge it). Overall it’s awesome, and unlike many Undertale fangames with a Sans fight, it’s actually beatable.”

FAQs

• I’m not hearing any music. How do I fix it?

  A: Try reopening your web browser.

• Will the soundtrack be released?

  A: Yes. It’ll be on YouTube soon.

• How many endings are there?

  A: 6 total: 2 for Normal Mode, 2 for Hard Mode, and 2 for Monday Mode.

• Monday Mode seems impossible.

  A: It’s not a question. And yes—it really is. I can’t beat the game on Monday for sure.

Final Verdict

Undergarf: Bad Monday Simulator is a challenging crossover game where Garfcat and Undertale combine to create the world of Undergarf. You play as Nermal and jump into an Undertale-style duel against Sansfield, the strange fusion of Sans and Garfcat.

Set in a simulator world free from war and strife—and free of Mondays—you’re tasked with taking on the ultimate threat. If you’re ready for a dark, battle-focused adventure, Undergarf offers an entertaining experience built around strategy, timing, and perseverance.