Shovel Knight: Treasure Trove is one of the finest love letters to the NES era ever crafted. What started as a Kickstarter pitch for a retro platformer evolved into a collection of four distinct campaigns, each with unique mechanics and playstyles that rival the quality of the 8-bit classics they pay homage to. The original Shovel Knight campaign captures the best of Mega Man and DuckTales with tight shovel-bouncing mechanics and meticulously designed levels. The additional campaigns -- Plague Knight's alchemical chaos, Specter Knight's wall-running precision, and King Knight's shoulder-bashing adventure -- each feel like complete games rather than add-ons. The pixel art is gorgeous, the chiptune soundtrack is exceptional, and the boss encounters are consistently inventive. The Treasure Trove package offers extraordinary value. If there is a criticism, it is that the difficulty can be uneven across campaigns, and the retro aesthetic will not appeal to everyone. But Yacht Club Games demonstrated that nostalgia and excellence are not mutually exclusive -- this is a modern classic that stands on its own merits.