I played "Pinball Hall of Fame: The Williams Collection" some more last night, way more than I should have.
A while back
urbeatle mentioned grinding elements escaping the MMPORG genre. One thing that made me a little apprehensive at first was that this disc has an achievement system. You start out with a rather small number of credits, which you can earn by meeting various challenges for the different tables, and though some of the games (Funhouse, Pinbot, Gorgar and Taxi, at least) have free play, the others take credits to play. You can unlock free play for any of the other tables by paying 100 credits.
If this had been badly tuned it'd have introduced an unpleasant grind element into the game. (You're going to make me work to play the games I already paid for?) Fortunately, even the easy achievements give you big wads of credits, and it's pretty easy to get enough credits not to worry about running out, at least at first. Still, a complete pinball newbie might find this daunting.
A while back
If this had been badly tuned it'd have introduced an unpleasant grind element into the game. (You're going to make me work to play the games I already paid for?) Fortunately, even the easy achievements give you big wads of credits, and it's pretty easy to get enough credits not to worry about running out, at least at first. Still, a complete pinball newbie might find this daunting.