No, no, no, no. That is exactly how a C64 tape cassette worked. Loading, loading, loading.

I remember getting further than ever before in Midnight Resistance (which sounded less rapey to me at the time), and then waiting for the next level, loading, loading, loading...

ROFL! Loading ... please wait ...

OK, I'll accept that explanation :)

No sound and a couple of other things seem off in Firefox on Linux.

Chrome Canary on Windows works fine.

Is there any kind of tool for analysing JavaScript and reporting compatibility issues?

Works for me on Arch Linux + Firefox 38. In one room I could not search one specific object though.

Seems to work for me on Conkeror (basically Firefox) on OS X Yosemite.