It was a successor, it has its own catalogue of games, it came out 8 years after the previous model. Yes is wasn't a big improvement on the technical side, but it was part of another gen
Gameboy end of gen 3 and 4 (NES/MS followed by SNES MEGADRIVE)
GBC gen 5 (N64/PS1/SATURN)
GBA/GBsp/micro gen 6 (GC/PS2)
Nintendo DS/DSlite/DSi gen 7 (Wii/Xbox360/PSP/PS3)
Nintendo 3DS/2DS/New 3DS gen 8 (WiiU/XboxOne/PSvita/PS4)







