Worth it just for super puzzle fighter.
To start the game is only $20 USD. I would of paid $30 just for super puzzle fighter alone. The fact that the game is so cheap and has those other games as a bonus is spectacular.
If you like puzzle games then you'll love SPF (Super Puzzle Fighter). It has the perfect combination of speed, strategy, and competition. The system is ingenious as it promotes saving up your pieces for a bigger attack but at the same time it promotes destroying the pieces as well. The graphics are also just fun to look at and there is plenty of replay value with 11 characters to choose from and even a counter gem editor (counter gems are the gems you drop on your opponent).
Theres also a screenshot taker and ad hoc modes for all the games in the package.
All in all I can tell I'll be playing this game like crazy just for Super Puzzle Fighter Alone. But with those other games added this game is just better and better.