For Mario Kart 8 Deluxe , the base Title ID is:

Mario Kart 8 Deluxe offers a variety of gameplay modes, including:

At first glance, this looks like gibberish. But for those who mod, back up saves, or run Switch emulators, this is a precise fingerprint for a specific version of one of Nintendo’s most popular racing games.

: Community findings indicate the game was secretly recompiled to 64-bit architecture in recent versions (starting around 3.0.3/3.0.4). While this has minimal impact on standard Switch gameplay, it significantly improves performance for users utilizing NCE (Native Code Execution) in emulation. 3. Network & Multiplayer Online Access