Conina on 21 April 2016
New generation: new console/handheld hardware AND the majority of new titles doesn't work on the older systems of the same company.
New 3DS / DSi : only very few new Nintendo titles needed that revision, most others titles of the same year still ran fine on the older hardware, so no new generation.
Gameboy Color was a new generation IMHO, there were a lot of titles that wouldn't run on the older Gameboy models.
