Compatibility fell with the introduction of 12K and 16K titles, such as Pinball and Bump N Jump, and the release of games dependent on the Intellivision Entertainment Computer System (ECS). Despite this, 47 titles in the full 61 game Mattel catalogue were compatible with PlayCable when Mattel Electronics closed its Intellivision business in early 1984.
The introduction of new game formats, such as 12K and 16K titles like Pinball and Bump N Jump, which utilized the ECS, occurred alongside the release of compatible games. Interestingly, 47 out of 61 Mattel catalogue games were playable via PlayCable when Mattel Electronics closed its Intellivision operations in early 1984.