This is the Digimon Adventure movie and anime theme song.
The Welcome to Digimon World begins with Agumon and the digivice, but then shows familiar faces, like Gabumon, Gomamon, Leomon, Palmon, Tentomon, and Tyrannomon.
It has since been rereleased multiple times, with a 10th anniversary version in 2009 and one to accompany Digimon Adventure tri as its theme song.
Most recently, Digimon Story Cyber Sleuth: Complete Edition showed up on the Nintendo Switch and PC.