My daughters have loved playing with the Phineas and Ferb Toy Box Set, the characters in the game, Phineas and Perry, as opposed to Ferb, are true to their originals in the cartoon.
This sets does NOT come with a playset (ie no adventures to unlock), however the two power disks which are included (and which can be stacked on the base so both work at once) make the toy box Danville-like. Playing in the game you can unlock various characters and toys (eg a water slide) through play and there are a couple of challenges to do, one involving building a huge pinball machine. Perry throws his hat as a weapon and Ferb has a baseball gun - great fun.
Whilst it is a bit of a shame that there isn't a playset at present - it would have great potential - these are great character choices for getting really creative in the toy box. Like the other toys in the infinity collection, the actual solid characters themselves are nicely finished and well made. We love this set!