Denshattack!

This post offers a 25% discount on the game Denshattack!, bringing the price down to $14.99 from $19.99. While the discount is decent and the price is noted as the lowest ever, the product itself is relatively niche, and without knowing the typical price range or the platform (eShop implies Nintendo Switch), it's hard to definitively call it a must-buy. It's a moderate saving on a video game.