Yeh, the files seems to have been removed from that link, I get the same error. To be honest there is no point in running TC4 when gun/mouse emulation has not been implemented, you just see some cutscenes and then get stuck with no gun control. With the latest build of the emulator JPD has implemented a lot of fixes and I am able to run most of the 2x6 games now (I made my own arcadedefs); adding mouse/gun emulation would be the next best thing for Play.