Lemme guess. You haven't gotten the "4-way combo" yet.
Lol! Too much or too few beer? j/k
A good start for exploring an unknown table would be ipdb.org (for TZ http://www.ipdb.org/machine.cgi?id=2684)
where you find features, rule sheets, etc. - or the instructions included in TPA.
All it took was getting a ball jammed under the upper flipper on the R and it stood out pretty good