The "NSP" (presumably referring to the Nintendo Switch package or the standard digital format) represents a "plus-plus" remaster. Unlike traditional remasters that simply upscale resolution, this trilogy utilized almost no original code.
: Relive the original platforming adventures with over 100 levels of spinning, jumping, and wumping. Crash Bandicoot N. Sane Trilogy -NSP-
– Slightly more generous checkpointing and life system compared to the original PS1 versions. The "NSP" (presumably referring to the Nintendo Switch
The vehicle levels (motorcycle, jet ski, airplane) benefit hugely from the Switch’s ability to use the Pro Controller. The NSP version installs the Future Tense DLC seamlessly as an extra warp room portal. This level is brutally hard but serves as a love letter to long-time fans. Crash Bandicoot N. Sane Trilogy -NSP-
