Pro Pinball: Timeshock! works mostly well under Crossover Games v7.0 (tested on Mac). There are a few bugs, as follows:
a: The flippers occasionally stick in the "up" position.
b: Nudging the table causes the screen to go black, after which you can only see the ball itself and any areas it crosses over as it crosses the table. You can avoid this artifact by going into the Graphics Options and disabling "Nudge Scrolling".
c: You cannot customize the controls. Attempting to do so locks up the screen. (see Tips & Ticks for an in-game solution)
d: Although the game installs fine from the cd, it is unable to read the cd. A No-CD patch is needed in order to play. Additionally, due to the inability to read the cd, there is no music. See below.
Timeshock! came on a mixed-mode Audio/Data CD, resulting in a couple problems due to differences over how Windows and OS X reads them. The cd reads like an Audio CD, but the game data is on track 1, and the music is on tracks 2-33. Windows mounts such cds as one volume, showing the data track like any other data cd but hides the audio session. OS X mounts it as two different volumes, one a data cd, the other an audio cd. As a result of this, the game is unable to read the cd. Firstly, this means a no-cd patch is required to play. Secondly, there is no music to accompany the game "as intended".
Aside from this, the game plays very nicely. I'm running this in Crossover Games v7.0 under Mac OS 10.5.2 on a Mac Pro, 2 x 2 GHz Dual-Core Intel Xeon with 8 GB RAM.