Design the Fight, Then Survive It
Wild Card is a unique fan-made Undertale-inspired battle simulator created by MarkneoNeo. Instead of dodging preset attacks, you create the fight yourself by selecting a deck of “Wild Cards” that represent Sans' attacks—bones, gravity shifts, Gaster Blasters, and more.
There’s no story or progression. This is pure sandbox creativity: you build, then you battle. It’s a twist on traditional bullet hell gameplay—part customizer, part chaos machine.
Gameplay – Cards First, Dodging Second
Custom Attack Sequences
- Pick from a list of attack cards, each representing a different move.
- Drag and arrange them into a custom order—this becomes your boss phase.
- Mix and match combos to make it easy, fair, or brutally unfair.
Bullet Hell Combat
- Once your pattern is set, press play—and now you’re the player, dodging every attack you just set up.
- The difficulty is in your hands. You can train with simple combos or challenge yourself with nonstop blasters.
Controls
While exact keys may vary, typical Undertale-style controls include:
- Arrow keys to move your soul.
- Z / Enter to confirm or interact.
- X / Shift to slow movement during intense patterns.
There’s no game over screen or win condition—just the joy of surviving what you created.
Similar Games – Fan-Made Chaos You’ll Enjoy
If Wild Card scratches your creative bullet hell itch, check these out too:
- Deltarune Mockup Battle Toy – Make custom Deltarune fight scenes.
- Undertale: Last Breath – Fight Sans in a multi-phase, high-stakes boss battle.
- Megalomaniac Sans Fight – Glitchtale-style remix with intense bullet patterns.
- Friday Night Funkin’ Mods – For rhythm-style boss battles with modded creativity.
- Just Shapes & Beats – Pure music-driven bullet hell chaos.
Ready to build the ultimate Sans battle? Wild Card lets you become the boss designer—and the poor soul who has to survive it. Play now and get creative!