Both Square Joker and Ride the bus appear early, so it is easy to scale them and win. There is a Blueprint somewhere on the first four antes. You can also find an invisible joker, a polychhrome Ceremonial Dagger and Glass Joker if you have glass cards. Hologram shows up in ante 6 or 7. One spectral pack had Ectoplasm, which allowed me to have economy jokers more confortably and not worry too much about Crimson Heart (there is also a Director´s cut if you prefer to skip it).