So, I finally beat Thunderscape, and I remember reading somewhere that there was a secret level after killing the last boss, but I found no such thing, it went straight into the ending cinematic; is that true, am I missing something?
As far as I remember, there is no secret level after
the last boss. But I remember a secret small area somewhere between the Collapsed Cavern level or the Mantis Cave level. To access it, you have to jump in the water and follow the stream.
Hi, yes, it could be that one, but I still think there's a possibility it's a different one; here's a walkthrough that hints at such a possibility:
Or maybe I didn't understand something about it; either way, I uninstalled the game a few months back, so we may never know :-/