Here are some that I don't think were mentioned yet.
"New" Super Mario Bros. - great on the Wii, but meh on the Wii U.
Wii Sports Club - The biggest franchise from Gen 7 becomes digital only games. Really felt Nintendo was trying to kill off Wii Sports.
Tetris - The first game was basically perfect as is. Every iteration after it had this "what the?" effect. Now I love Puyo Puyo Tetris, but it took them 5 generations of tries, before one of their spinoffs actually was better than just plain old Tetris.
Katamari Damacy - The PS2 games are great, but the later games were disappointing.
Kingdom Hearts and Team ICO - These fall into a special category in that they started great on the PS2, were totally nonexistant on the PS3, and then were disappointing on the PS4.