https://www.gamespot.com/articles/nintendo-switch-eshop-offers-rare-discount-this-ti/1100-6453570/

Thumper came to Nintendo Switch earlier this year, joining PS4, PSVR, PC, Oculus Rift, and Steam VR in hosting this critically acclaimed "rhythm-violence" game (our Thumper review called it "too good to miss"). Now the Nintendo Eshop is offering a discount on the game for a limited time.

Usually costing US $20 / £16, the Eshop is offering a 25% discount and selling the game for $15 / £12. If you want to take advantage of the deal, the discount is on for the next week.