Hello! That's a simple but cute minigame. I like how you control the protagonist with a single button, but you can still have different sort of movements. I would've loved though a linear increase in difficulty since after a while it switches to hard and then it stops scaling. Also for some enemy formations I felt like avoiding damage was impossible, but maybe I'm wrong since I realize you can sometime dive under sharks (but maybe not all of them?). The theme or countdown is far from being the main focus unfortunately, but as long as it inspired you, it's totally fine!
Here's the VOD (game is at 2:25:00)