Battle with Undyne!

Challenge the legendary guardian of Waterfall — the fish-warrior Undyne. Raise the Green Soul’s shield to deflect flashing spears, then swap to the agile Red Soul to weave through volleys. Pick a difficulty from Relaxed to Hardcore; on the hardest setting stay alive as long as you can to climb the global leaderboard. Keep your DETERMINATION burning and claim victory!

How to Play

— Select a difficulty level from the main menu — Hold the Green Soul’s shield to block Undyne’s spears — Switch to the Red Soul and dash to dodge incoming attacks — Survive Hardcore mode to etch your name on the leaderboard — Use wasd and the arrow keys to control

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