Sounds like Goblin 0.1.0.3

Goblins & Panic — 2D side-scroller/platformer:
You sprint through procedurally generated levels, fight different goblin types, and collect coins for permanent shop upgrades. Each goblin makes a warning/alarm sound if you defeat it incorrectly or too slowly—these alarms raise a global Frenzy meter. Once the Frenzy reaches a threshold, a massive goblin (the boss) in the background goes berserk, entering Chase Mode and hunting the player. You can only escape if you’ve collected enough and unlocked the right items.
The final boss is a timing challenge: you must use the correct item during its vulnerable window. Parallax backgrounds, responsive controls (sprint, roll, jump, attack, optional parry), and persistent shop upgrades complete the experience.

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